49172580 has 36 divisors (see below), whose sum is σ = 149157372. Its totient is φ = 13112640.

The previous prime is 49172569. The next prime is 49172587. The reversal of 49172580 is 8527194.

49172580 is a `hidden beast` number, since 4 + 9 + 1 + 72 + 580 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16064064 + 33108516 = 4008^2 + 5754^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (49172587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136411 + ... + 136770.

Almost surely, 2^49172580 is an apocalyptic number.

It is an amenable number.

49172580 is an abundant number, since it is smaller than the sum of its proper divisors (99984792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49172580 is a wasteful number, since it uses less digits than its factorization.

49172580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273196 (or 273191 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 49172580 is about 7012.3163077545. The cubic root of 49172580 is about 366.3596750909.

The spelling of 49172580 in words is "forty-nine million, one hundred seventy-two thousand, five hundred eighty".