253601670 has 32 divisors (see below), whose sum is σ = 695593728. Its totient is φ = 57966048.

The previous prime is 253601653. The next prime is 253601671. The reversal of 253601670 is 76106352.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253601671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603604 + ... + 604023.

It is an arithmetic number, because the mean of its divisors is an integer number (21737304).

Almost surely, 2^253601670 is an apocalyptic number.

253601670 is an abundant number, since it is smaller than the sum of its proper divisors (441992058).

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

253601670 is a wasteful number, since it uses less digits than its factorization.

253601670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207644.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 253601670 is about 15924.8758236917. The cubic root of 253601670 is about 632.9713255905.

The spelling of 253601670 in words is "two hundred fifty-three million, six hundred one thousand, six hundred seventy".