51066536 has 8 divisors (see below), whose sum is σ = 95749770. Its totient is φ = 25533264.

The previous prime is 51066527. The next prime is 51066541. The reversal of 51066536 is 63566015.

It can be written as a sum of positive squares in only one way, i.e., 37332100 + 13734436 = 6110^2 + 3706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3191651 + ... + 3191666.

Almost surely, 2^51066536 is an apocalyptic number.

It is an amenable number.

51066536 is a deficient number, since it is larger than the sum of its proper divisors (44683234).

51066536 is a wasteful number, since it uses less digits than its factorization.

51066536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383323 (or 6383319 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 51066536 is about 7146.0853619307. The cubic root of 51066536 is about 371.0041774873.

The spelling of 51066536 in words is "fifty-one million, sixty-six thousand, five hundred thirty-six".