51960390 has 32 divisors (see below), whose sum is σ = 124899840. Its totient is φ = 13834464.

The previous prime is 51960379. The next prime is 51960413. The reversal of 51960390 is 9306915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30337 + ... + 32003.

It is an arithmetic number, because the mean of its divisors is an integer number (3903120).

Almost surely, 2^51960390 is an apocalyptic number.

51960390 is an abundant number, since it is smaller than the sum of its proper divisors (72939450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51960390 is a wasteful number, since it uses less digits than its factorization.

51960390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 51960390 is about 7208.3555683665. The cubic root of 51960390 is about 373.1563193214.

The spelling of 51960390 in words is "fifty-one million, nine hundred sixty thousand, three hundred ninety".