25629064490 has 8 divisors (see below), whose sum is σ = 46132316100. Its totient is φ = 10251625792.

The previous prime is 25629064463. The next prime is 25629064529. The reversal of 25629064490 is 9446092652.

It can be written as a sum of positive squares in 2 ways, for example, as 25107353209 + 521711281 = 158453^2 + 22841^2 .

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

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, 1281453215 + ... + 1281453234.

Almost surely, 2^25629064490 is an apocalyptic number.

25629064490 is a deficient number, since it is larger than the sum of its proper divisors (20503251610).

25629064490 is a wasteful number, since it uses less digits than its factorization.

25629064490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562906456.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 25629064490 in words is "twenty-five billion, six hundred twenty-nine million, sixty-four thousand, four hundred ninety".