253474520 has 96 divisors (see below), whose sum is σ = 629188560. Its totient is φ = 91353600.

The previous prime is 253474519. The next prime is 253474537. The reversal of 253474520 is 25474352.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1934855 + ... + 1934985.

Almost surely, 2^253474520 is an apocalyptic number.

253474520 is a gapful number since it is divisible by the number (20) 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 253474520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314594280).

253474520 is an abundant number, since it is smaller than the sum of its proper divisors (375714040).

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

253474520 is a wasteful number, since it uses less digits than its factorization.

253474520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 253474520 is about 15920.8831413336. The cubic root of 253474520 is about 632.8655221883.

The spelling of 253474520 in words is "two hundred fifty-three million, four hundred seventy-four thousand, five hundred twenty".