25238257001 has 12 divisors (see below), whose sum is σ = 27210362928. Its totient is φ = 23399103552.

The previous prime is 25238256973. The next prime is 25238257007. The reversal of 25238257001 is 10075283252.

It is a de Polignac number, because none of the positive numbers 2^k-25238257001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25238257007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 632351 + ... + 671076.

It is an arithmetic number, because the mean of its divisors is an integer number (2267530244).

Almost surely, 2^25238257001 is an apocalyptic number.

It is an amenable number.

25238257001 is a deficient number, since it is larger than the sum of its proper divisors (1972105927).

25238257001 is a wasteful number, since it uses less digits than its factorization.

25238257001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303528 (or 1303511 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 25238257001 in words is "twenty-five billion, two hundred thirty-eight million, two hundred fifty-seven thousand, one".