2525014021 has 4 divisors (see below), whose sum is σ = 2612083500. Its totient is φ = 2437944544.

The previous prime is 2525014007. The next prime is 2525014033. The reversal of 2525014021 is 1204105252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1641141121 + 883872900 = 40511^2 + 29730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525014021 - 2⁵ = 2525013989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2525013983 and 2525014001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525014721) 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, 43534696 + ... + 43534753.

It is an arithmetic number, because the mean of its divisors is an integer number (653020875).

Almost surely, 2^2525014021 is an apocalyptic number.

It is an amenable number.

2525014021 is a deficient number, since it is larger than the sum of its proper divisors (87069479).

2525014021 is an equidigital number, since it uses as much as digits as its factorization.

2525014021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87069478.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2525014021 is about 50249.5176195752. The cubic root of 2525014021 is about 1361.7203612611.

Adding to 2525014021 its reverse (1204105252), we get a palindrome (3729119273).

The spelling of 2525014021 in words is "two billion, five hundred twenty-five million, fourteen thousand, twenty-one".