25229797954 has 8 divisors (see below), whose sum is σ = 40070855628. Its totient is φ = 11872846080.

The previous prime is 25229797907. The next prime is 25229797961. The reversal of 25229797954 is 45979792252.

It can be written as a sum of positive squares in 2 ways, for example, as 23861907729 + 1367890225 = 154473^2 + 36985^2 .

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

It is a super-2 number, since 2×25229797954² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25229797892 and 25229797901.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 371026407 + ... + 371026474.

Almost surely, 2^25229797954 is an apocalyptic number.

25229797954 is a deficient number, since it is larger than the sum of its proper divisors (14841057674).

25229797954 is a wasteful number, since it uses less digits than its factorization.

25229797954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742052900.

The product of its digits is 28576800, while the sum is 61.

The spelling of 25229797954 in words is "twenty-five billion, two hundred twenty-nine million, seven hundred ninety-seven thousand, nine hundred fifty-four".