55534464 has 64 divisors (see below), whose sum is σ = 163914000. Its totient is φ = 18510336.

The previous prime is 55534463. The next prime is 55534469. The reversal of 55534464 is 46443555.

55534464 is a `hidden beast` number, since 5 + 553 + 44 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55534463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4579 + ... + 11490.

Almost surely, 2^55534464 is an apocalyptic number.

55534464 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55534464 is an abundant number, since it is smaller than the sum of its proper divisors (108379536).

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

55534464 is a wasteful number, since it uses less digits than its factorization.

55534464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16092 (or 16074 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 55534464 is about 7452.1449261270. The cubic root of 55534464 is about 381.5231204643.

Subtracting from 55534464 its reverse (46443555), we obtain a palindrome (9090909).

The spelling of 55534464 in words is "fifty-five million, five hundred thirty-four thousand, four hundred sixty-four".