57353406 has 32 divisors (see below), whose sum is σ = 126067968. Its totient is φ = 17250240.

The previous prime is 57353389. The next prime is 57353411. The reversal of 57353406 is 60435375.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5871 + ... + 12213.

It is an arithmetic number, because the mean of its divisors is an integer number (3939624).

Almost surely, 2^57353406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57353406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63033984).

57353406 is an abundant number, since it is smaller than the sum of its proper divisors (68714562).

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

57353406 is a wasteful number, since it uses less digits than its factorization.

57353406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 57353406 is about 7573.2031532239. The cubic root of 57353406 is about 385.6438453770.

The spelling of 57353406 in words is "fifty-seven million, three hundred fifty-three thousand, four hundred six".