52997400 has 72 divisors (see below), whose sum is σ = 177988980. Its totient is φ = 14132160.

The previous prime is 52997389. The next prime is 52997407. The reversal of 52997400 is 479925.

52997400 is a `hidden beast` number, since 529 + 97 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52997407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12922 + ... + 16521.

Almost surely, 2^52997400 is an apocalyptic number.

52997400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52997400 is an abundant number, since it is smaller than the sum of its proper divisors (124991580).

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

52997400 is a wasteful number, since it uses less digits than its factorization.

52997400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29465 (or 29453 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 52997400 is about 7279.9313183573. The cubic root of 52997400 is about 375.6224329676.

The spelling of 52997400 in words is "fifty-two million, nine hundred ninety-seven thousand, four hundred".