53156461 has 4 divisors (see below), whose sum is σ = 53293500. Its totient is φ = 53019424.

The previous prime is 53156447. The next prime is 53156479. The reversal of 53156461 is 16465135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 18275625 = 5906^2 + 4275^2 .

It is a cyclic number.

It is not a de Polignac number, because 53156461 - 2⁵ = 53156429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53156561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67936 + ... + 68713.

It is an arithmetic number, because the mean of its divisors is an integer number (13323375).

Almost surely, 2^53156461 is an apocalyptic number.

It is an amenable number.

53156461 is a deficient number, since it is larger than the sum of its proper divisors (137039).

53156461 is a wasteful number, since it uses less digits than its factorization.

53156461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137038.

The product of its digits is 10800, while the sum is 31.

The square root of 53156461 is about 7290.8477559197. The cubic root of 53156461 is about 375.9978426200.

The spelling of 53156461 in words is "fifty-three million, one hundred fifty-six thousand, four hundred sixty-one".