257475372 has 96 divisors (see below), whose sum is σ = 760381440. Its totient is φ = 65862720.

The previous prime is 257475371. The next prime is 257475373. The reversal of 257475372 is 273574752.

It is a happy number.

257475372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (257475371) and next prime (257475373).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (257475371) 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, 59829 + ... + 63987.

It is an arithmetic number, because the mean of its divisors is an integer number (7920640).

Almost surely, 2^257475372 is an apocalyptic number.

257475372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257475372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380190720).

257475372 is an abundant number, since it is smaller than the sum of its proper divisors (502906068).

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

257475372 is a wasteful number, since it uses less digits than its factorization.

257475372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251 (or 4249 counting only the distinct ones).

The product of its digits is 411600, while the sum is 42.

The square root of 257475372 is about 16046.0391374320. The cubic root of 257475372 is about 636.1778803108.

The spelling of 257475372 in words is "two hundred fifty-seven million, four hundred seventy-five thousand, three hundred seventy-two".