52657400 has 24 divisors (see below), whose sum is σ = 122428920. Its totient is φ = 21062880.

The previous prime is 52657399. The next prime is 52657421. The reversal of 52657400 is 475625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131444 + ... + 131843.

It is an arithmetic number, because the mean of its divisors is an integer number (5101205).

Almost surely, 2^52657400 is an apocalyptic number.

52657400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52657400 is an abundant number, since it is smaller than the sum of its proper divisors (69771520).

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

52657400 is a wasteful number, since it uses less digits than its factorization.

52657400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263303 (or 263294 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 52657400 is about 7256.5418761281. The cubic root of 52657400 is about 374.8174518917.

The spelling of 52657400 in words is "fifty-two million, six hundred fifty-seven thousand, four hundred".