55590604078 has 128 divisors (see below), whose sum is σ = 98605900800. Its totient is φ = 23336957952.

The previous prime is 55590604051. The next prime is 55590604079. The reversal of 55590604078 is 87040609555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55590604079) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106291525 + ... + 106292047.

It is an arithmetic number, because the mean of its divisors is an integer number (770358600).

Almost surely, 2^55590604078 is an apocalyptic number.

55590604078 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55590604078 is a deficient number, since it is larger than the sum of its proper divisors (43015296722).

55590604078 is a wasteful number, since it uses less digits than its factorization.

55590604078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 55590604078 in words is "fifty-five billion, five hundred ninety million, six hundred four thousand, seventy-eight".