53311556 has 6 divisors (see below), whose sum is σ = 93295230. Its totient is φ = 26655776.

The previous prime is 53311553. The next prime is 53311613. The reversal of 53311556 is 65511335.

It can be written as a sum of positive squares in only one way, i.e., 51351556 + 1960000 = 7166^2 + 1400^2 .

It is a super-2 number, since 2×53311556² = 5684244006282272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53311553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6663941 + ... + 6663948.

It is an arithmetic number, because the mean of its divisors is an integer number (15549205).

Almost surely, 2^53311556 is an apocalyptic number.

It is an amenable number.

53311556 is a deficient number, since it is larger than the sum of its proper divisors (39983674).

53311556 is a wasteful number, since it uses less digits than its factorization.

53311556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13327893 (or 13327891 counting only the distinct ones).

The product of its digits is 6750, while the sum is 29.

The square root of 53311556 is about 7301.4762890802. The cubic root of 53311556 is about 376.3631714394.

The spelling of 53311556 in words is "fifty-three million, three hundred eleven thousand, five hundred fifty-six".