53399406 has 16 divisors (see below), whose sum is σ = 107259984. Its totient is φ = 17722944.

The previous prime is 53399389. The next prime is 53399413. The reversal of 53399406 is 60499335.

It is a super-2 number, since 2×53399406² = 5702993122305672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17701 + ... + 20496.

It is an arithmetic number, because the mean of its divisors is an integer number (6703749).

Almost surely, 2^53399406 is an apocalyptic number.

53399406 is an abundant number, since it is smaller than the sum of its proper divisors (53860578).

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

53399406 is a wasteful number, since it uses less digits than its factorization.

53399406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38435.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 53399406 is about 7307.4897194591. The cubic root of 53399406 is about 376.5697893058.

The spelling of 53399406 in words is "fifty-three million, three hundred ninety-nine thousand, four hundred six".