53406012 has 36 divisors (see below), whose sum is σ = 136976168. Its totient is φ = 16183200.

The previous prime is 53406011. The next prime is 53406013. The reversal of 53406012 is 21060435.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53406011) and next prime (53406013).

It is a self number, because there is not a number n which added to its sum of digits gives 53406012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53406011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16939 + ... + 19842.

Almost surely, 2^53406012 is an apocalyptic number.

It is an amenable number.

53406012 is an abundant number, since it is smaller than the sum of its proper divisors (83570156).

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

53406012 is a wasteful number, since it uses less digits than its factorization.

53406012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36810 (or 36797 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53406012 is about 7307.9417074851. The cubic root of 53406012 is about 376.5853170532.

Adding to 53406012 its reverse (21060435), we get a palindrome (74466447).

The spelling of 53406012 in words is "fifty-three million, four hundred six thousand, twelve".