51961527 has 8 divisors (see below), whose sum is σ = 76980080. Its totient is φ = 34641000.

The previous prime is 51961519. The next prime is 51961541. The reversal of 51961527 is 72516915.

51961527 is a `hidden beast` number, since 5 + 19 + 615 + 27 = 666.

It is not a de Polignac number, because 51961527 - 2³ = 51961519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51961491 and 51961500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51961517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962224 + ... + 962277.

It is an arithmetic number, because the mean of its divisors is an integer number (9622510).

Almost surely, 2^51961527 is an apocalyptic number.

51961527 is a deficient number, since it is larger than the sum of its proper divisors (25018553).

51961527 is a wasteful number, since it uses less digits than its factorization.

51961527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924510 (or 1924504 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 51961527 is about 7208.4344347438. The cubic root of 51961527 is about 373.1590411103.

The spelling of 51961527 in words is "fifty-one million, nine hundred sixty-one thousand, five hundred twenty-seven".