55411512 has 32 divisors (see below), whose sum is σ = 149185680. Its totient is φ = 17049600.

The previous prime is 55411511. The next prime is 55411519. The reversal of 55411512 is 21511455.

It is a super-2 number, since 2×55411512² = 6140871324252288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55411511) 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, 88489 + ... + 89112.

Almost surely, 2^55411512 is an apocalyptic number.

55411512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55411512 is an abundant number, since it is smaller than the sum of its proper divisors (93774168).

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

55411512 is a wasteful number, since it uses less digits than its factorization.

55411512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177623 (or 177619 counting only the distinct ones).

The product of its digits is 1000, while the sum is 24.

The square root of 55411512 is about 7443.8909180616. The cubic root of 55411512 is about 381.2413513401.

Adding to 55411512 its reverse (21511455), we get a palindrome (76922967).

The spelling of 55411512 in words is "fifty-five million, four hundred eleven thousand, five hundred twelve".