2507390881 has 2 divisors, whose sum is σ = 2507390882. Its totient is φ = 2507390880.

The previous prime is 2507390867. The next prime is 2507390929. The reversal of 2507390881 is 1880937052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2504001600 + 3389281 = 50040^2 + 1841^2 .

It is a cyclic number.

It is not a de Polignac number, because 2507390881 - 2¹¹ = 2507388833 is a prime.

It is a super-2 number, since 2×2507390881² = 12574018060243912322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2507390861) 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 as a sum of consecutive naturals, namely, 1253695440 + 1253695441.

It is an arithmetic number, because the mean of its divisors is an integer number (1253695441).

Almost surely, 2^2507390881 is an apocalyptic number.

It is an amenable number.

2507390881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2507390881 is an equidigital number, since it uses as much as digits as its factorization.

2507390881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 2507390881 is about 50073.8542654747. The cubic root of 2507390881 is about 1358.5449549603.

The spelling of 2507390881 in words is "two billion, five hundred seven million, three hundred ninety thousand, eight hundred eighty-one".