25123522213252 has 24 divisors (see below), whose sum is σ = 44166854876760. Its totient is φ = 12504442433280.

The previous prime is 25123522213243. The next prime is 25123522213277. The reversal of 25123522213252 is 25231222532152.

It can be written as a sum of positive squares in 4 ways, for example, as 1871298146116 + 23252224067136 = 1367954^2 + 4822056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1955178 + ... + 7353214.

It is an arithmetic number, because the mean of its divisors is an integer number (1840285619865).

Almost surely, 2^{25123522213252} is an apocalyptic number.

It is an amenable number.

25123522213252 is a deficient number, since it is larger than the sum of its proper divisors (19043332663508).

25123522213252 is a wasteful number, since it uses less digits than its factorization.

25123522213252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403351 (or 5403349 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The spelling of 25123522213252 in words is "twenty-five trillion, one hundred twenty-three billion, five hundred twenty-two million, two hundred thirteen thousand, two hundred fifty-two".