51963580 has 12 divisors (see below), whose sum is σ = 109123560. Its totient is φ = 20785424.

The previous prime is 51963559. The next prime is 51963589. The reversal of 51963580 is 8536915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51963589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1299070 + ... + 1299109.

It is an arithmetic number, because the mean of its divisors is an integer number (9093630).

Almost surely, 2^51963580 is an apocalyptic number.

It is an amenable number.

51963580 is an abundant number, since it is smaller than the sum of its proper divisors (57159980).

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

51963580 is a wasteful number, since it uses less digits than its factorization.

51963580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598188 (or 2598186 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 51963580 is about 7208.5768359642. The cubic root of 51963580 is about 373.1639555503.

The spelling of 51963580 in words is "fifty-one million, nine hundred sixty-three thousand, five hundred eighty".