49490725 has 24 divisors (see below), whose sum is σ = 66702080. Its totient is φ = 36288000.

The previous prime is 49490717. The next prime is 49490729. The reversal of 49490725 is 52709494.

It is not a de Polignac number, because 49490725 - 2³ = 49490717 is a prime.

It is a super-2 number, since 2×49490725² = 4898663722051250, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49490729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13045 + ... + 16405.

Almost surely, 2^49490725 is an apocalyptic number.

It is an amenable number.

49490725 is a deficient number, since it is larger than the sum of its proper divisors (17211355).

49490725 is a wasteful number, since it uses less digits than its factorization.

49490725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421 (or 3416 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 49490725 is about 7034.9644633075. The cubic root of 49490725 is about 367.1480889344.

It can be divided in two parts, 494 and 90725, that added together give a palindrome (91219).

The spelling of 49490725 in words is "forty-nine million, four hundred ninety thousand, seven hundred twenty-five".