55403132551 has 8 divisors (see below), whose sum is σ = 59718728160. Its totient is φ = 51095224992.

The previous prime is 55403132509. The next prime is 55403132569. The reversal of 55403132551 is 15523130455.

55403132551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55403132551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55403139551) 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, 1907035 + ... + 1935868.

It is an arithmetic number, because the mean of its divisors is an integer number (7464841020).

Almost surely, 2^55403132551 is an apocalyptic number.

55403132551 is a deficient number, since it is larger than the sum of its proper divisors (4315595609).

55403132551 is a wasteful number, since it uses less digits than its factorization.

55403132551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844025.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 55403132551 in words is "fifty-five billion, four hundred three million, one hundred thirty-two thousand, five hundred fifty-one".