55616061504 has 56 divisors (see below), whose sum is σ = 147890382400. Its totient is φ = 18445515264.

The previous prime is 55616061499. The next prime is 55616061509. The reversal of 55616061504 is 40516061655.

It is an interprime number because it is at equal distance from previous prime (55616061499) and next prime (55616061509).

It is not an unprimeable number, because it can be changed into a prime (55616061509) 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, 689599 + ... + 766014.

Almost surely, 2^55616061504 is an apocalyptic number.

It is an amenable number.

55616061504 is an abundant number, since it is smaller than the sum of its proper divisors (92274320896).

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

55616061504 is a wasteful number, since it uses less digits than its factorization.

55616061504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455827 (or 1455817 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 55616061504 in words is "fifty-five billion, six hundred sixteen million, sixty-one thousand, five hundred four".