253817542 has 16 divisors (see below), whose sum is σ = 437198400. Its totient is φ = 109299240.

The previous prime is 253817539. The next prime is 253817563. The reversal of 253817542 is 245718352.

253817542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303192 + ... + 304027.

It is an arithmetic number, because the mean of its divisors is an integer number (27324900).

Almost surely, 2^253817542 is an apocalyptic number.

253817542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

253817542 is a deficient number, since it is larger than the sum of its proper divisors (183380858).

253817542 is a wasteful number, since it uses less digits than its factorization.

253817542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607251.

The product of its digits is 67200, while the sum is 37.

The square root of 253817542 is about 15931.6522055937. The cubic root of 253817542 is about 633.1508749256.

It can be divided in two parts, 25381 and 7542, that added together give a palindrome (32923).

The spelling of 253817542 in words is "two hundred fifty-three million, eight hundred seventeen thousand, five hundred forty-two".