25052534621 has 8 divisors (see below), whose sum is σ = 25142451840. Its totient is φ = 24962729968.

The previous prime is 25052534581. The next prime is 25052534681. The reversal of 25052534621 is 12643525052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25052534621 - 2⁶ = 25052534557 is a prime.

It is a super-2 number, since 2×25052534621² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052534681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431120 + ... + 485766.

It is an arithmetic number, because the mean of its divisors is an integer number (3142806480).

Almost surely, 2^25052534621 is an apocalyptic number.

It is an amenable number.

25052534621 is a deficient number, since it is larger than the sum of its proper divisors (89917219).

25052534621 is a wasteful number, since it uses less digits than its factorization.

25052534621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56283.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 25052534621 in words is "twenty-five billion, fifty-two million, five hundred thirty-four thousand, six hundred twenty-one".