49918725 has 36 divisors (see below), whose sum is σ = 90070500. Its totient is φ = 26426880.

The previous prime is 49918721. The next prime is 49918727. The reversal of 49918725 is 52781994.

It can be written as a sum of positive squares in 6 ways, for example, as 11985444 + 37933281 = 3462^2 + 6159^2 .

It is not a de Polignac number, because 49918725 - 2² = 49918721 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49918721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32781 + ... + 34269.

Almost surely, 2^49918725 is an apocalyptic number.

49918725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49918725 is a deficient number, since it is larger than the sum of its proper divisors (40151775).

49918725 is a wasteful number, since it uses less digits than its factorization.

49918725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1646 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 49918725 is about 7065.3184641600. The cubic root of 49918725 is about 368.2034285025.

49918725 divided by its sum of digits (45) gives a triangular number (1109305 = T₁₄₈₉).

The spelling of 49918725 in words is "forty-nine million, nine hundred eighteen thousand, seven hundred twenty-five".