2497890061 has 2 divisors, whose sum is σ = 2497890062. Its totient is φ = 2497890060.

The previous prime is 2497889987. The next prime is 2497890071. The reversal of 2497890061 is 1600987942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1266932836 + 1230957225 = 35594^2 + 35085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497890061 - 2²³ = 2489501453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2497889993 and 2497890020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2497890071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248945030 + 1248945031.

It is an arithmetic number, because the mean of its divisors is an integer number (1248945031).

Almost surely, 2^2497890061 is an apocalyptic number.

It is an amenable number.

2497890061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497890061 is an equidigital number, since it uses as much as digits as its factorization.

2497890061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 2497890061 is about 49978.8961562778. The cubic root of 2497890061 is about 1356.8268837929.

The spelling of 2497890061 in words is "two billion, four hundred ninety-seven million, eight hundred ninety thousand, sixty-one".