49172625 has 48 divisors (see below), whose sum is σ = 89678160. Its totient is φ = 25920000.

The previous prime is 49172621. The next prime is 49172633. The reversal of 49172625 is 52627194.

It can be written as a sum of positive squares in 8 ways, for example, as 1272384 + 47900241 = 1128^2 + 6921^2 .

It is not a de Polignac number, because 49172625 - 2² = 49172621 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49172625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49172621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122425 + ... + 122825.

It is an arithmetic number, because the mean of its divisors is an integer number (1868295).

Almost surely, 2^49172625 is an apocalyptic number.

49172625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49172625 is a deficient number, since it is larger than the sum of its proper divisors (40505535).

49172625 is a wasteful number, since it uses less digits than its factorization.

49172625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 518 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 49172625 is about 7012.3195163940. The cubic root of 49172625 is about 366.3597868481.

The spelling of 49172625 in words is "forty-nine million, one hundred seventy-two thousand, six hundred twenty-five".