49975540 has 24 divisors (see below), whose sum is σ = 105081480. Its totient is φ = 19964928.

The previous prime is 49975517. The next prime is 49975553. The reversal of 49975540 is 4557994.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7907344 + 42068196 = 2812^2 + 6486^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30256 + ... + 31864.

It is an arithmetic number, because the mean of its divisors is an integer number (4378395).

Almost surely, 2^49975540 is an apocalyptic number.

It is an amenable number.

49975540 is an abundant number, since it is smaller than the sum of its proper divisors (55105940).

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

49975540 is a wasteful number, since it uses less digits than its factorization.

49975540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171 (or 3169 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 49975540 is about 7069.3380170989. The cubic root of 49975540 is about 368.3430657916.

The spelling of 49975540 in words is "forty-nine million, nine hundred seventy-five thousand, five hundred forty".