257037172516425 has 48 divisors (see below), whose sum is σ = 485679246538752. Its totient is φ = 117502371355200.

The previous prime is 257037172516373. The next prime is 257037172516427. The reversal of 257037172516425 is 524615271730752.

It is not a de Polignac number, because 257037172516425 - 2¹¹ = 257037172514377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257037172516427) 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, 353923522 + ... + 354649028.

It is an arithmetic number, because the mean of its divisors is an integer number (10118317636224).

Almost surely, 2^{257037172516425} is an apocalyptic number.

257037172516425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

257037172516425 is a deficient number, since it is larger than the sum of its proper divisors (228642074022327).

257037172516425 is a wasteful number, since it uses less digits than its factorization.

257037172516425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400358 (or 1400353 counting only the distinct ones).

The product of its (nonzero) digits is 24696000, while the sum is 57.

The spelling of 257037172516425 in words is "two hundred fifty-seven trillion, thirty-seven billion, one hundred seventy-two million, five hundred sixteen thousand, four hundred twenty-five".