2507212091 has 2 divisors, whose sum is σ = 2507212092. Its totient is φ = 2507212090.

The previous prime is 2507212087. The next prime is 2507212121. The reversal of 2507212091 is 1902127052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2507212091 - 2² = 2507212087 is a prime.

It is a super-2 number, since 2×2507212091² = 12572224938513184562, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2507212031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253606045 + 1253606046.

It is an arithmetic number, because the mean of its divisors is an integer number (1253606046).

Almost surely, 2^2507212091 is an apocalyptic number.

2507212091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2507212091 is an equidigital number, since it uses as much as digits as its factorization.

2507212091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 2507212091 is about 50072.0689706347. The cubic root of 2507212091 is about 1358.5126637544.

The spelling of 2507212091 in words is "two billion, five hundred seven million, two hundred twelve thousand, ninety-one".