253377820 has 12 divisors (see below), whose sum is σ = 532093464. Its totient is φ = 101351120.

The previous prime is 253377811. The next prime is 253377823. The reversal of 253377820 is 28773352.

It is a self number, because there is not a number n which added to its sum of digits gives 253377820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253377823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6334426 + ... + 6334465.

It is an arithmetic number, because the mean of its divisors is an integer number (44341122).

Almost surely, 2^253377820 is an apocalyptic number.

253377820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253377820 is an abundant number, since it is smaller than the sum of its proper divisors (278715644).

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

253377820 is a wasteful number, since it uses less digits than its factorization.

253377820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12668900 (or 12668898 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 253377820 is about 15917.8459598025. The cubic root of 253377820 is about 632.7850329937.

The spelling of 253377820 in words is "two hundred fifty-three million, three hundred seventy-seven thousand, eight hundred twenty".