253542190 has 64 divisors (see below), whose sum is σ = 514812672. Its totient is φ = 89849760.

The previous prime is 253542187. The next prime is 253542193. The reversal of 253542190 is 91245352.

It is an interprime number because it is at equal distance from previous prime (253542187) and next prime (253542193).

It is a super-2 number, since 2×253542190² = 128567284219992200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253542193) 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, 572109 + ... + 572551.

It is an arithmetic number, because the mean of its divisors is an integer number (8043948).

Almost surely, 2^253542190 is an apocalyptic number.

253542190 is an abundant number, since it is smaller than the sum of its proper divisors (261270482).

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

253542190 is a wasteful number, since it uses less digits than its factorization.

253542190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 253542190 is about 15923.0081956897. The cubic root of 253542190 is about 632.9218358031.

The spelling of 253542190 in words is "two hundred fifty-three million, five hundred forty-two thousand, one hundred ninety".