55513476 has 18 divisors (see below), whose sum is σ = 140325822. Its totient is φ = 18504480.

The previous prime is 55513463. The next prime is 55513499. The reversal of 55513476 is 67431555.

55513476 is a `hidden beast` number, since 5 + 551 + 34 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42380100 + 13133376 = 6510^2 + 3624^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1542041 = 55513476 / (5 + 5 + 5 + 1 + 3 + 4 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 55513476.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 770985 + ... + 771056.

It is an arithmetic number, because the mean of its divisors is an integer number (7795879).

Almost surely, 2^55513476 is an apocalyptic number.

It is an amenable number.

55513476 is an abundant number, since it is smaller than the sum of its proper divisors (84812346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55513476 is a wasteful number, since it uses less digits than its factorization.

55513476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542051 (or 1542046 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 55513476 is about 7450.7366078798. The cubic root of 55513476 is about 381.4750517179.

The spelling of 55513476 in words is "fifty-five million, five hundred thirteen thousand, four hundred seventy-six".