49900858225 has 27 divisors (see below), whose sum is σ = 63410561163. Its totient is φ = 38954769840.

The previous prime is 49900858199. The next prime is 49900858237. The reversal of 49900858225 is 52285800994.

The square root of 49900858225 is 223385.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17964308961 + 31936549264 = 134031^2 + 178708^2 .

It is not a de Polignac number, because 49900858225 - 2⁷ = 49900858097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48027256 + ... + 48028294.

Almost surely, 2^49900858225 is an apocalyptic number.

49900858225 is the 223385-th square number.

49900858225 is the 111693-rd centered octagonal number.

It is an amenable number.

49900858225 is a deficient number, since it is larger than the sum of its proper divisors (13509702938).

49900858225 is an frugal number, since it uses more digits than its factorization.

49900858225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 49900858225 in words is "forty-nine billion, nine hundred million, eight hundred fifty-eight thousand, two hundred twenty-five".