2625566501 has 4 divisors (see below), whose sum is σ = 2658801600. Its totient is φ = 2592331404.

The previous prime is 2625566497. The next prime is 2625566519. The reversal of 2625566501 is 1056655262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2625566501 - 2² = 2625566497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625566201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16617431 + ... + 16617588.

It is an arithmetic number, because the mean of its divisors is an integer number (664700400).

Almost surely, 2^2625566501 is an apocalyptic number.

It is an amenable number.

2625566501 is a deficient number, since it is larger than the sum of its proper divisors (33235099).

2625566501 is an equidigital number, since it uses as much as digits as its factorization.

2625566501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33235098.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 2625566501 is about 51240.2820152270. The cubic root of 2625566501 is about 1379.5613149135.

The spelling of 2625566501 in words is "two billion, six hundred twenty-five million, five hundred sixty-six thousand, five hundred one".