53611312 has 20 divisors (see below), whose sum is σ = 109339480. Its totient is φ = 25394688.

The previous prime is 53611309. The next prime is 53611339. The reversal of 53611312 is 21311635.

It is a happy number.

It is a super-2 number, since 2×53611312² = 5748345548722688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87873 + ... + 88480.

It is an arithmetic number, because the mean of its divisors is an integer number (5466974).

Almost surely, 2^53611312 is an apocalyptic number.

It is an amenable number.

53611312 is an abundant number, since it is smaller than the sum of its proper divisors (55728168).

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

53611312 is a wasteful number, since it uses less digits than its factorization.

53611312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176380 (or 176374 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 53611312 is about 7321.9745970605. The cubic root of 53611312 is about 377.0672484970.

Adding to 53611312 its reverse (21311635), we get a palindrome (74922947).

The spelling of 53611312 in words is "fifty-three million, six hundred eleven thousand, three hundred twelve".