25525553007 has 32 divisors (see below), whose sum is σ = 36532440000. Its totient is φ = 15821180928.

The previous prime is 25525552999. The next prime is 25525553033. The reversal of 25525553007 is 70035552552.

It is not a de Polignac number, because 25525553007 - 2³ = 25525552999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525553507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271369 + ... + 353117.

It is an arithmetic number, because the mean of its divisors is an integer number (1141638750).

Almost surely, 2^25525553007 is an apocalyptic number.

25525553007 is a deficient number, since it is larger than the sum of its proper divisors (11006886993).

25525553007 is a wasteful number, since it uses less digits than its factorization.

25525553007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81915.

The product of its (nonzero) digits is 262500, while the sum is 39.

The spelling of 25525553007 in words is "twenty-five billion, five hundred twenty-five million, five hundred fifty-three thousand, seven".