51970260 has 48 divisors (see below), whose sum is σ = 150216192. Its totient is φ = 13411200.

The previous prime is 51970249. The next prime is 51970307. The reversal of 51970260 is 6207915.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 12111 + ... + 15830.

It is an arithmetic number, because the mean of its divisors is an integer number (3129504).

Almost surely, 2^51970260 is an apocalyptic number.

It is an amenable number.

51970260 is an abundant number, since it is smaller than the sum of its proper divisors (98245932).

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

51970260 is a wasteful number, since it uses less digits than its factorization.

51970260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27984 (or 27982 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 51970260 is about 7209.0401580238. The cubic root of 51970260 is about 373.1799451365.

The spelling of 51970260 in words is "fifty-one million, nine hundred seventy thousand, two hundred sixty".