1975660056 has 24 divisors (see below), whose sum is σ = 5350746180. Its totient is φ = 658553328.

The previous prime is 1975660051. The next prime is 1975660067. The reversal of 1975660056 is 6500665791.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1975659993 and 1975660020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1975660051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13719790 + ... + 13719933.

Almost surely, 2^1975660056 is an apocalyptic number.

It is an amenable number.

1975660056 is an abundant number, since it is smaller than the sum of its proper divisors (3375086124).

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

1975660056 is a wasteful number, since it uses less digits than its factorization.

1975660056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27439735 (or 27439728 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 1975660056 is about 44448.3976764067. The cubic root of 1975660056 is about 1254.7891067459.

The spelling of 1975660056 in words is "one billion, nine hundred seventy-five million, six hundred sixty thousand, fifty-six".