55413438 has 24 divisors (see below), whose sum is σ = 117733272. Its totient is φ = 17384064.

The previous prime is 55413431. The next prime is 55413469. The reversal of 55413438 is 83431455.

It is a super-2 number, since 2×55413438² = 6141298221959688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55413399 and 55413408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55413431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14245 + ... + 17712.

It is an arithmetic number, because the mean of its divisors is an integer number (4905553).

Almost surely, 2^55413438 is an apocalyptic number.

55413438 is an abundant number, since it is smaller than the sum of its proper divisors (62319834).

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

55413438 is a wasteful number, since it uses less digits than its factorization.

55413438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31996 (or 31979 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 55413438 is about 7444.0202847655. The cubic root of 55413438 is about 381.2457683665.

The spelling of 55413438 in words is "fifty-five million, four hundred thirteen thousand, four hundred thirty-eight".