125204502890 has 8 divisors (see below), whose sum is σ = 225368105220. Its totient is φ = 50081801152.

The previous prime is 125204502859. The next prime is 125204502893. The reversal of 125204502890 is 98205402521.

It can be written as a sum of positive squares in 2 ways, for example, as 124328875609 + 875627281 = 352603^2 + 29591^2 .

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

It is not an unprimeable number, because it can be changed into a prime (125204502893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6260225135 + ... + 6260225154.

Almost surely, 2^125204502890 is an apocalyptic number.

125204502890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125204502890 is a deficient number, since it is larger than the sum of its proper divisors (100163602330).

125204502890 is a wasteful number, since it uses less digits than its factorization.

125204502890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12520450296.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 125204502890 in words is "one hundred twenty-five billion, two hundred four million, five hundred two thousand, eight hundred ninety".