2505520051 has 2 divisors, whose sum is σ = 2505520052. Its totient is φ = 2505520050.

The previous prime is 2505520049. The next prime is 2505520067. The reversal of 2505520051 is 1500255052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2505520051 - 2¹ = 2505520049 is a prime.

Together with 2505520049, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2505519998 and 2505520025.

It is not a weakly prime, because it can be changed into another prime (2505520091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252760025 + 1252760026.

It is an arithmetic number, because the mean of its divisors is an integer number (1252760026).

Almost surely, 2^2505520051 is an apocalyptic number.

2505520051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505520051 is an equidigital number, since it uses as much as digits as its factorization.

2505520051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 2505520051 is about 50055.1700726309. The cubic root of 2505520051 is about 1358.2069889018.

The spelling of 2505520051 in words is "two billion, five hundred five million, five hundred twenty thousand, fifty-one".