49709925 has 18 divisors (see below), whose sum is σ = 89036402. Its totient is φ = 26511840.

The previous prime is 49709903. The next prime is 49709927. The reversal of 49709925 is 52990794.

It can be written as a sum of positive squares in 3 ways, for example, as 1726596 + 47983329 = 1314^2 + 6927^2 .

It is not a de Polignac number, because 49709925 - 2⁸ = 49709669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49709927) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 110242 + ... + 110691.

Almost surely, 2^49709925 is an apocalyptic number.

49709925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49709925 is a deficient number, since it is larger than the sum of its proper divisors (39326477).

49709925 is a wasteful number, since it uses less digits than its factorization.

49709925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220949 (or 220941 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 49709925 is about 7050.5265760793. The cubic root of 49709925 is about 367.6893373936.

The spelling of 49709925 in words is "forty-nine million, seven hundred nine thousand, nine hundred twenty-five".