2500277775251 has 4 divisors (see below), whose sum is σ = 2500701772632. Its totient is φ = 2499853777872.

The previous prime is 2500277775161. The next prime is 2500277775253. The reversal of 2500277775251 is 1525777720052.

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 2500277775251 - 2³⁴ = 2483097906067 is a prime.

It is a super-2 number, since 2×2500277775251² (a number of 26 digits) contains 22 as substring.

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 2500277775251.

It is not an unprimeable number, because it can be changed into a prime (2500277775253) 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, 211989845 + ... + 212001638.

It is an arithmetic number, because the mean of its divisors is an integer number (625175443158).

Almost surely, 2^{2500277775251} is an apocalyptic number.

2500277775251 is a deficient number, since it is larger than the sum of its proper divisors (423997381).

2500277775251 is an equidigital number, since it uses as much as digits as its factorization.

2500277775251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423997380.

The product of its (nonzero) digits is 2401000, while the sum is 50.

The spelling of 2500277775251 in words is "two trillion, five hundred billion, two hundred seventy-seven million, seven hundred seventy-five thousand, two hundred fifty-one".