51093970 has 16 divisors (see below), whose sum is σ = 93078720. Its totient is φ = 20191024.

The previous prime is 51093953. The next prime is 51093989. The reversal of 51093970 is 7939015.

It is a super-2 number, since 2×51093970² = 5221187540721800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29950 + ... + 31609.

It is an arithmetic number, because the mean of its divisors is an integer number (5817420).

Almost surely, 2^51093970 is an apocalyptic number.

51093970 is a deficient number, since it is larger than the sum of its proper divisors (41984750).

51093970 is a wasteful number, since it uses less digits than its factorization.

51093970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61649.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 51093970 is about 7148.0046166745. The cubic root of 51093970 is about 371.0706026345.

The spelling of 51093970 in words is "fifty-one million, ninety-three thousand, nine hundred seventy".