51047770 has 32 divisors (see below), whose sum is σ = 97651008. Its totient is φ = 19147008.

The previous prime is 51047671. The next prime is 51047779. The reversal of 51047770 is 7774015.

It is not an unprimeable number, because it can be changed into a prime (51047779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79069 + ... + 79711.

It is an arithmetic number, because the mean of its divisors is an integer number (3051594).

Almost surely, 2^51047770 is an apocalyptic number.

51047770 is a deficient number, since it is larger than the sum of its proper divisors (46603238).

51047770 is a wasteful number, since it uses less digits than its factorization.

51047770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134.

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 51047770 is about 7144.7722147036. The cubic root of 51047770 is about 370.9587262130.

The spelling of 51047770 in words is "fifty-one million, forty-seven thousand, seven hundred seventy".