253992542 has 16 divisors (see below), whose sum is σ = 397943712. Its totient is φ = 121355520.

The previous prime is 253992539. The next prime is 253992547. The reversal of 253992542 is 245299352.

It is a super-2 number, since 2×253992542² = 129024422783243528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 253992542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253992547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60578 + ... + 64634.

It is an arithmetic number, because the mean of its divisors is an integer number (24871482).

Almost surely, 2^253992542 is an apocalyptic number.

253992542 is a deficient number, since it is larger than the sum of its proper divisors (143951170).

253992542 is a wasteful number, since it uses less digits than its factorization.

253992542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5443.

The product of its digits is 194400, while the sum is 41.

The square root of 253992542 is about 15937.1434705219. The cubic root of 253992542 is about 633.2963546892.

The spelling of 253992542 in words is "two hundred fifty-three million, nine hundred ninety-two thousand, five hundred forty-two".