28624100025 has 48 divisors (see below), whose sum is σ = 49190226624. Its totient is φ = 14674510080.

The previous prime is 28624100023. The next prime is 28624100053. The reversal of 28624100025 is 52000142682.

It is not a de Polignac number, because 28624100025 - 2¹ = 28624100023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28624099965 and 28624100001.

It is not an unprimeable number, because it can be changed into a prime (28624100023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168187 + ... + 292463.

It is an arithmetic number, because the mean of its divisors is an integer number (1024796388).

Almost surely, 2^28624100025 is an apocalyptic number.

28624100025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28624100025 is a deficient number, since it is larger than the sum of its proper divisors (20566126599).

28624100025 is a wasteful number, since it uses less digits than its factorization.

28624100025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124410 (or 124405 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 28624100025 in words is "twenty-eight billion, six hundred twenty-four million, one hundred thousand, twenty-five".