25210512452 has 12 divisors (see below), whose sum is σ = 44121613116. Its totient is φ = 12604337280.

The previous prime is 25210512433. The next prime is 25210512461. The reversal of 25210512452 is 25421501252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13760228416 + 11450284036 = 117304^2 + 107006^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166049 + ... + 279272.

It is an arithmetic number, because the mean of its divisors is an integer number (3676801093).

Almost surely, 2^25210512452 is an apocalyptic number.

It is an amenable number.

25210512452 is a deficient number, since it is larger than the sum of its proper divisors (18911100664).

25210512452 is a wasteful number, since it uses less digits than its factorization.

25210512452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459478 (or 459476 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 25210512452 in words is "twenty-five billion, two hundred ten million, five hundred twelve thousand, four hundred fifty-two".