51601156 has 6 divisors (see below), whose sum is σ = 90302030. Its totient is φ = 25800576.

The previous prime is 51601153. The next prime is 51601157. The reversal of 51601156 is 65110615.

It can be written as a sum of positive squares in only one way, i.e., 27394756 + 24206400 = 5234^2 + 4920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51601156.

It is not an unprimeable number, because it can be changed into a prime (51601153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6450141 + ... + 6450148.

Almost surely, 2^51601156 is an apocalyptic number.

It is an amenable number.

51601156 is a deficient number, since it is larger than the sum of its proper divisors (38700874).

51601156 is a wasteful number, since it uses less digits than its factorization.

51601156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12900293 (or 12900291 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 51601156 is about 7183.3944622302. The cubic root of 51601156 is about 372.2943771541.

The spelling of 51601156 in words is "fifty-one million, six hundred one thousand, one hundred fifty-six".