2525421031 has 4 divisors (see below), whose sum is σ = 2886195472. Its totient is φ = 2164646592.

The previous prime is 2525421023. The next prime is 2525421121. The reversal of 2525421031 is 1301245252.

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 2525421031 - 2³ = 2525421023 is a prime.

It is a super-2 number, since 2×2525421031² = 12755502767634205922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2525420987 and 2525421005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525421011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180387210 + ... + 180387223.

It is an arithmetic number, because the mean of its divisors is an integer number (721548868).

Almost surely, 2^2525421031 is an apocalyptic number.

2525421031 is a deficient number, since it is larger than the sum of its proper divisors (360774441).

2525421031 is an equidigital number, since it uses as much as digits as its factorization.

2525421031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360774440.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2525421031 is about 50253.5673460104. The cubic root of 2525421031 is about 1361.7935231027.

Adding to 2525421031 its reverse (1301245252), we get a palindrome (3826666283).

The spelling of 2525421031 in words is "two billion, five hundred twenty-five million, four hundred twenty-one thousand, thirty-one".