2651252765 has 24 divisors (see below), whose sum is σ = 3862482432. Its totient is φ = 1711054080.

The previous prime is 2651252759. The next prime is 2651252771. The reversal of 2651252765 is 5672521562.

It is an interprime number because it is at equal distance from previous prime (2651252759) and next prime (2651252771).

It is not a de Polignac number, because 2651252765 - 2⁶ = 2651252701 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120941 + ... + 141170.

It is an arithmetic number, because the mean of its divisors is an integer number (160936768).

Almost surely, 2^2651252765 is an apocalyptic number.

It is an amenable number.

2651252765 is a deficient number, since it is larger than the sum of its proper divisors (1211229667).

2651252765 is a wasteful number, since it uses less digits than its factorization.

2651252765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262157 (or 262140 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 2651252765 is about 51490.3171965371. The cubic root of 2651252765 is about 1384.0455335251.

The spelling of 2651252765 in words is "two billion, six hundred fifty-one million, two hundred fifty-two thousand, seven hundred sixty-five".