2551420292 has 6 divisors (see below), whose sum is σ = 4464985518. Its totient is φ = 1275710144.

The previous prime is 2551420247. The next prime is 2551420297. The reversal of 2551420292 is 2920241552.

It can be written as a sum of positive squares in only one way, i.e., 2541773056 + 9647236 = 50416^2 + 3106^2 .

It is not an unprimeable number, because it can be changed into a prime (2551420297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318927533 + ... + 318927540.

It is an arithmetic number, because the mean of its divisors is an integer number (744164253).

Almost surely, 2^2551420292 is an apocalyptic number.

It is an amenable number.

2551420292 is a deficient number, since it is larger than the sum of its proper divisors (1913565226).

2551420292 is a wasteful number, since it uses less digits than its factorization.

2551420292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637855077 (or 637855075 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2551420292 is about 50511.5857205057. The cubic root of 2551420292 is about 1366.4508078935.

The spelling of 2551420292 in words is "two billion, five hundred fifty-one million, four hundred twenty thousand, two hundred ninety-two".