25112020146 has 32 divisors (see below), whose sum is σ = 52061184000. Its totient is φ = 8066743440.

The previous prime is 25112020127. The next prime is 25112020159. The reversal of 25112020146 is 64102021152.

It is a super-2 number, since 2×25112020146² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237996 + ... + 326903.

It is an arithmetic number, because the mean of its divisors is an integer number (1626912000).

Almost surely, 2^25112020146 is an apocalyptic number.

25112020146 is an abundant number, since it is smaller than the sum of its proper divisors (26949163854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25112020146 is a wasteful number, since it uses less digits than its factorization.

25112020146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565174.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 25112020146 its reverse (64102021152), we get a palindrome (89214041298).

The spelling of 25112020146 in words is "twenty-five billion, one hundred twelve million, twenty thousand, one hundred forty-six".