25721130633675 has 24 divisors (see below), whose sum is σ = 42580902616560. Its totient is φ = 13700097638400.

The previous prime is 25721130633647. The next prime is 25721130633677. The reversal of 25721130633675 is 57633603112752.

It is not a de Polignac number, because 25721130633675 - 2¹⁷ = 25721130502603 is a prime.

It is a super-2 number, since 2×25721130633675² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25721130633677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222925686 + ... + 223041035.

It is an arithmetic number, because the mean of its divisors is an integer number (1774204275690).

Almost surely, 2^{25721130633675} is an apocalyptic number.

25721130633675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25721130633675 is a deficient number, since it is larger than the sum of its proper divisors (16859771982885).

25721130633675 is a wasteful number, since it uses less digits than its factorization.

25721130633675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445967503 (or 445967498 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 51.

The spelling of 25721130633675 in words is "twenty-five trillion, seven hundred twenty-one billion, one hundred thirty million, six hundred thirty-three thousand, six hundred seventy-five".