53491212 has 24 divisors (see below), whose sum is σ = 138681200. Its totient is φ = 17830368.

The previous prime is 53491189. The next prime is 53491219. The reversal of 53491212 is 21219435.

53491212 is a `hidden beast` number, since 534 + 9 + 121 + 2 = 666.

It is a super-2 number, since 2×53491212² = 5722619522457888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53491219) 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, 247537 + ... + 247752.

Almost surely, 2^53491212 is an apocalyptic number.

It is an amenable number.

53491212 is an abundant number, since it is smaller than the sum of its proper divisors (85189988).

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

53491212 is a wasteful number, since it uses less digits than its factorization.

53491212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495302 (or 495294 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 53491212 is about 7313.7686591798. The cubic root of 53491212 is about 376.7854694384.

It can be divided in two parts, 5349 and 1212, that added together give a 8-th power (6561 = 3⁸).

The spelling of 53491212 in words is "fifty-three million, four hundred ninety-one thousand, two hundred twelve".