55776751632 has 200 divisors, whose sum is σ = 184655788416. Its totient is φ = 15922427904.

The previous prime is 55776751631. The next prime is 55776751651. The reversal of 55776751632 is 23615767755.

55776751632 is a `hidden beast` number, since 5 + 57 + 76 + 7 + 516 + 3 + 2 = 666.

It is a super-2 number, since 2×55776751632² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (55776751631) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15393373 + ... + 15396995.

Almost surely, 2^55776751632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55776751632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92327894208).

55776751632 is an abundant number, since it is smaller than the sum of its proper divisors (128879036784).

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

55776751632 is a wasteful number, since it uses less digits than its factorization.

55776751632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5347 (or 5332 counting only the distinct ones).

The product of its digits is 9261000, while the sum is 54.

The spelling of 55776751632 in words is "fifty-five billion, seven hundred seventy-six million, seven hundred fifty-one thousand, six hundred thirty-two".