49989025 has 6 divisors (see below), whose sum is σ = 61986422. Its totient is φ = 39991200.

The previous prime is 49989007. The next prime is 49989029. The reversal of 49989025 is 52098994.

It can be written as a sum of positive squares in 3 ways, for example, as 314721 + 49674304 = 561^2 + 7048^2 .

It is not a de Polignac number, because 49989025 - 2⁹ = 49988513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49989029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 999756 + ... + 999805.

Almost surely, 2^49989025 is an apocalyptic number.

It is an amenable number.

49989025 is a deficient number, since it is larger than the sum of its proper divisors (11997397).

49989025 is a wasteful number, since it uses less digits than its factorization.

49989025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999571 (or 1999566 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 49989025 is about 7070.2917195827. The cubic root of 49989025 is about 368.3761930611.

The spelling of 49989025 in words is "forty-nine million, nine hundred eighty-nine thousand, twenty-five".