51970590 has 48 divisors (see below), whose sum is σ = 154428768. Its totient is φ = 11878848.

The previous prime is 51970577. The next prime is 51970603. The reversal of 51970590 is 9507915.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51970577) and next prime (51970603).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40617 + ... + 41876.

It is an arithmetic number, because the mean of its divisors is an integer number (3217266).

Almost surely, 2^51970590 is an apocalyptic number.

51970590 is an abundant number, since it is smaller than the sum of its proper divisors (102458178).

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

51970590 is a wasteful number, since it uses less digits than its factorization.

51970590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82513 (or 82510 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 51970590 is about 7209.0630459166. The cubic root of 51970590 is about 373.1807350056.

The spelling of 51970590 in words is "fifty-one million, nine hundred seventy thousand, five hundred ninety".