53406357 has 8 divisors (see below), whose sum is σ = 71942976. Its totient is φ = 35236992.

The previous prime is 53406349. The next prime is 53406361. The reversal of 53406357 is 75360435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53406357 - 2³ = 53406349 is a prime.

It is a super-2 number, since 2×53406357² = 5704477936022898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53406307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91473 + ... + 92054.

It is an arithmetic number, because the mean of its divisors is an integer number (8992872).

Almost surely, 2^53406357 is an apocalyptic number.

It is an amenable number.

53406357 is a deficient number, since it is larger than the sum of its proper divisors (18536619).

53406357 is a wasteful number, since it uses less digits than its factorization.

53406357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183627.

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

The square root of 53406357 is about 7307.9653119045. The cubic root of 53406357 is about 376.5861279585.

The spelling of 53406357 in words is "fifty-three million, four hundred six thousand, three hundred fifty-seven".