15625002675556 has 24 divisors (see below), whose sum is σ = 27474915345920. Its totient is φ = 7775048656512.

The previous prime is 15625002675551. The next prime is 15625002675571. The reversal of 15625002675556 is 65557620052651.

It is a happy number.

It is a super-2 number, since 2×15625002675556² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15625002675497 and 15625002675506.

It is not an unprimeable number, because it can be changed into a prime (15625002675551) 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, 147025 + ... + 5592103.

Almost surely, 2^{15625002675556} is an apocalyptic number.

It is an amenable number.

15625002675556 is a deficient number, since it is larger than the sum of its proper divisors (11849912670364).

15625002675556 is a wasteful number, since it uses less digits than its factorization.

15625002675556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448523 (or 5448521 counting only the distinct ones).

The product of its (nonzero) digits is 18900000, while the sum is 55.

The spelling of 15625002675556 in words is "fifteen trillion, six hundred twenty-five billion, two million, six hundred seventy-five thousand, five hundred fifty-six".