51550852 has 6 divisors (see below), whose sum is σ = 90213998. Its totient is φ = 25775424.

The previous prime is 51550813. The next prime is 51550853. The reversal of 51550852 is 25805515.

It can be written as a sum of positive squares in only one way, i.e., 38763076 + 12787776 = 6226^2 + 3576^2 .

It is not an unprimeable number, because it can be changed into a prime (51550853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443853 + ... + 6443860.

Almost surely, 2^51550852 is an apocalyptic number.

It is an amenable number.

51550852 is a deficient number, since it is larger than the sum of its proper divisors (38663146).

51550852 is a wasteful number, since it uses less digits than its factorization.

51550852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12887717 (or 12887715 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 51550852 is about 7179.8921997478. The cubic root of 51550852 is about 372.1733592880.

The spelling of 51550852 in words is "fifty-one million, five hundred fifty thousand, eight hundred fifty-two".