55454031 has 32 divisors (see below), whose sum is σ = 85017600. Its totient is φ = 35703360.

The previous prime is 55454011. The next prime is 55454039. The reversal of 55454031 is 13045455.

It is not a de Polignac number, because 55454031 - 2⁵ = 55453999 is a prime.

It is a super-2 number, since 2×55454031² = 6150299108297922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 55453986 and 55454004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55454039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112696 + ... + 113186.

It is an arithmetic number, because the mean of its divisors is an integer number (2656800).

Almost surely, 2^55454031 is an apocalyptic number.

55454031 is a deficient number, since it is larger than the sum of its proper divisors (29563569).

55454031 is a wasteful number, since it uses less digits than its factorization.

55454031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55454031 is about 7446.7463364882. The cubic root of 55454031 is about 381.3388392450.

Adding to 55454031 its reverse (13045455), we get a palindrome (68499486).

The spelling of 55454031 in words is "fifty-five million, four hundred fifty-four thousand, thirty-one".