51136701 has 64 divisors (see below), whose sum is σ = 90587136. Its totient is φ = 24883200.

The previous prime is 51136667. The next prime is 51136711. The reversal of 51136701 is 10763115.

51136701 = 154² + 155² + ... + 539².

It is not a de Polignac number, because 51136701 - 2⁶ = 51136637 is a prime.

It is a super-2 number, since 2×51136701² = 5229924378326802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51136711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 264861 + ... + 265053.

It is an arithmetic number, because the mean of its divisors is an integer number (1415424).

Almost surely, 2^51136701 is an apocalyptic number.

It is an amenable number.

51136701 is a deficient number, since it is larger than the sum of its proper divisors (39450435).

51136701 is a wasteful number, since it uses less digits than its factorization.

51136701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 51136701 is about 7150.9930079675. The cubic root of 51136701 is about 371.1740186193.

Adding to 51136701 its reverse (10763115), we get a palindrome (61899816).

The spelling of 51136701 in words is "fifty-one million, one hundred thirty-six thousand, seven hundred one".