55431135510 has 64 divisors (see below), whose sum is σ = 146984689152. Its totient is φ = 13307250176.

The previous prime is 55431135481. The next prime is 55431135523. The reversal of 55431135510 is 1553113455.

It is a super-2 number, since 2×55431135510² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2351064 + ... + 2374523.

It is an arithmetic number, because the mean of its divisors is an integer number (2296635768).

Almost surely, 2^55431135510 is an apocalyptic number.

55431135510 is an abundant number, since it is smaller than the sum of its proper divisors (91553553642).

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

55431135510 is a wasteful number, since it uses less digits than its factorization.

55431135510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725637.

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 55431135510 its reverse (1553113455), we get a palindrome (56984248965).

The spelling of 55431135510 in words is "fifty-five billion, four hundred thirty-one million, one hundred thirty-five thousand, five hundred ten".