257575070140 has 24 divisors (see below), whose sum is σ = 541076341680. Its totient is φ = 102997895808.

The previous prime is 257575070107. The next prime is 257575070143. The reversal of 257575070140 is 41070575752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257575070143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1942482 + ... + 2070841.

It is an arithmetic number, because the mean of its divisors is an integer number (22544847570).

Almost surely, 2^257575070140 is an apocalyptic number.

257575070140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257575070140 is an abundant number, since it is smaller than the sum of its proper divisors (283501271540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257575070140 is a wasteful number, since it uses less digits than its factorization.

257575070140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016541 (or 4016539 counting only the distinct ones).

The product of its (nonzero) digits is 343000, while the sum is 43.

The spelling of 257575070140 in words is "two hundred fifty-seven billion, five hundred seventy-five million, seventy thousand, one hundred forty".