2525342421 has 32 divisors (see below), whose sum is σ = 4055296000. Its totient is φ = 1365543360.

The previous prime is 2525342387. The next prime is 2525342423. The reversal of 2525342421 is 1242435252.

2525342421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2525342421 - 2¹⁰ = 2525341397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525342423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404280 + ... + 410478.

It is an arithmetic number, because the mean of its divisors is an integer number (126728000).

Almost surely, 2^2525342421 is an apocalyptic number.

2525342421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2525342421 is a deficient number, since it is larger than the sum of its proper divisors (1529953579).

2525342421 is a wasteful number, since it uses less digits than its factorization.

2525342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7249.

The product of its digits is 19200, while the sum is 30.

The square root of 2525342421 is about 50252.7852063943. The cubic root of 2525342421 is about 1361.7793932212.

Adding to 2525342421 its reverse (1242435252), we get a palindrome (3767777673).

The spelling of 2525342421 in words is "two billion, five hundred twenty-five million, three hundred forty-two thousand, four hundred twenty-one".