25379153890 has 16 divisors (see below), whose sum is σ = 45685720440. Its totient is φ = 10150940800.

The previous prime is 25379153861. The next prime is 25379153897. The reversal of 25379153890 is 9835197352.

It can be written as a sum of positive squares in 4 ways, for example, as 24867082249 + 512071641 = 157693^2 + 22629^2 .

It is not an unprimeable number, because it can be changed into a prime (25379153897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71616 + ... + 236404.

Almost surely, 2^25379153890 is an apocalyptic number.

25379153890 is a deficient number, since it is larger than the sum of its proper divisors (20306566550).

25379153890 is a wasteful number, since it uses less digits than its factorization.

25379153890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180197.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 25379153890 in words is "twenty-five billion, three hundred seventy-nine million, one hundred fifty-three thousand, eight hundred ninety".