51552285 has 32 divisors (see below), whose sum is σ = 87661440. Its totient is φ = 25820928.

The previous prime is 51552217. The next prime is 51552317. The reversal of 51552285 is 58225515.

It is not a de Polignac number, because 51552285 - 2¹⁰ = 51551261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14494 + ... + 17696.

It is an arithmetic number, because the mean of its divisors is an integer number (2739420).

Almost surely, 2^51552285 is an apocalyptic number.

It is an amenable number.

51552285 is a deficient number, since it is larger than the sum of its proper divisors (36109155).

51552285 is a wasteful number, since it uses less digits than its factorization.

51552285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277.

The product of its digits is 20000, while the sum is 33.

The square root of 51552285 is about 7179.9919916390. The cubic root of 51552285 is about 372.1768077890.

The spelling of 51552285 in words is "fifty-one million, five hundred fifty-two thousand, two hundred eighty-five".