25133387373 has 20 divisors (see below), whose sum is σ = 37600476540. Its totient is φ = 16730841816.

The previous prime is 25133387303. The next prime is 25133387407. The reversal of 25133387373 is 37378333152.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 24800580324 + 332807049 = 157482^2 + 18243^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=2031.

It is not a de Polignac number, because 25133387373 - 2¹⁷ = 25133256301 is a prime.

It is a super-2 number, since 2×25133387373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25133387303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37124311 + ... + 37124987.

It is an arithmetic number, because the mean of its divisors is an integer number (1880023827).

Almost surely, 2^25133387373 is an apocalyptic number.

It is an amenable number.

25133387373 is a deficient number, since it is larger than the sum of its proper divisors (12467089167).

25133387373 is an frugal number, since it uses more digits than its factorization.

25133387373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043 (or 680 counting only the distinct ones).

The product of its digits is 952560, while the sum is 45.

The spelling of 25133387373 in words is "twenty-five billion, one hundred thirty-three million, three hundred eighty-seven thousand, three hundred seventy-three".