2051056731 has 8 divisors (see below), whose sum is σ = 2756276224. Its totient is φ = 1356604200.

The previous prime is 2051056723. The next prime is 2051056739. The reversal of 2051056731 is 1376501502.

It is an interprime number because it is at equal distance from previous prime (2051056723) and next prime (2051056739).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2051056731 - 2³ = 2051056723 is a prime.

It is a super-2 number, since 2×2051056731² = 8413667427560812722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051056739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2691295 + ... + 2692056.

It is an arithmetic number, because the mean of its divisors is an integer number (344534528).

Almost surely, 2^2051056731 is an apocalyptic number.

2051056731 is a deficient number, since it is larger than the sum of its proper divisors (705219493).

2051056731 is a wasteful number, since it uses less digits than its factorization.

2051056731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383481.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 2051056731 is about 45288.5938289102. The cubic root of 2051056731 is about 1270.5523319306.

The spelling of 2051056731 in words is "two billion, fifty-one million, fifty-six thousand, seven hundred thirty-one".