2506400973425 has 24 divisors (see below), whose sum is σ = 3132141271200. Its totient is φ = 1989554302080.

The previous prime is 2506400973383. The next prime is 2506400973467. The reversal of 2506400973425 is 5243790046052.

It is an interprime number because it is at equal distance from previous prime (2506400973383) and next prime (2506400973467).

It is not a de Polignac number, because 2506400973425 - 2²² = 2506396779121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2506400973425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1432286 + ... + 2657864.

It is an arithmetic number, because the mean of its divisors is an integer number (130505886300).

Almost surely, 2^{2506400973425} is an apocalyptic number.

2506400973425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2506400973425 is a deficient number, since it is larger than the sum of its proper divisors (625740297775).

2506400973425 is a wasteful number, since it uses less digits than its factorization.

2506400973425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226225 (or 1226220 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 2506400973425 in words is "two trillion, five hundred six billion, four hundred million, nine hundred seventy-three thousand, four hundred twenty-five".