2651564023 has 2 divisors, whose sum is σ = 2651564024. Its totient is φ = 2651564022.

The previous prime is 2651563991. The next prime is 2651564029. The reversal of 2651564023 is 3204651562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2651564023 - 2⁵ = 2651563991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2651564023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2651564029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325782011 + 1325782012.

It is an arithmetic number, because the mean of its divisors is an integer number (1325782012).

Almost surely, 2^2651564023 is an apocalyptic number.

2651564023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651564023 is an equidigital number, since it uses as much as digits as its factorization.

2651564023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2651564023 is about 51493.3395984374. The cubic root of 2651564023 is about 1384.0996938819.

The spelling of 2651564023 in words is "two billion, six hundred fifty-one million, five hundred sixty-four thousand, twenty-three".