2507456421 has 12 divisors (see below), whose sum is σ = 3738716800. Its totient is φ = 1617713640.

The previous prime is 2507456417. The next prime is 2507456443. The reversal of 2507456421 is 1246547052.

It is a happy number.

2507456421 is a `hidden beast` number, since 2 + 5 + 0 + 7 + 4 + 5 + 642 + 1 = 666.

It is not a de Polignac number, because 2507456421 - 2² = 2507456417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2507456491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4493371 + ... + 4493928.

Almost surely, 2^2507456421 is an apocalyptic number.

It is an amenable number.

2507456421 is a deficient number, since it is larger than the sum of its proper divisors (1231260379).

2507456421 is a wasteful number, since it uses less digits than its factorization.

2507456421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8987336 (or 8987333 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2507456421 is about 50074.5086945444. The cubic root of 2507456421 is about 1358.5567917347.

The spelling of 2507456421 in words is "two billion, five hundred seven million, four hundred fifty-six thousand, four hundred twenty-one".