2505255751 has 4 divisors (see below), whose sum is σ = 2521212952. Its totient is φ = 2489298552.

The previous prime is 2505255743. The next prime is 2505255757. The reversal of 2505255751 is 1575525052.

2505255751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2505255751 - 2³ = 2505255743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2505255751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505255757) 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, 7978365 + ... + 7978678.

It is an arithmetic number, because the mean of its divisors is an integer number (630303238).

Almost surely, 2^2505255751 is an apocalyptic number.

2505255751 is a deficient number, since it is larger than the sum of its proper divisors (15957201).

2505255751 is a wasteful number, since it uses less digits than its factorization.

2505255751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15957200.

The product of its (nonzero) digits is 87500, while the sum is 37.

The square root of 2505255751 is about 50052.5299160792. The cubic root of 2505255751 is about 1358.1592294582.

The spelling of 2505255751 in words is "two billion, five hundred five million, two hundred fifty-five thousand, seven hundred fifty-one".