49988407 has 16 divisors (see below), whose sum is σ = 59899392. Its totient is φ = 40788000.

The previous prime is 49988377. The next prime is 49988441. The reversal of 49988407 is 70488994.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49988407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49988447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39793 + ... + 41029.

It is an arithmetic number, because the mean of its divisors is an integer number (3743712).

Almost surely, 2^49988407 is an apocalyptic number.

49988407 is the 5773-rd pentagonal number.

49988407 is a deficient number, since it is larger than the sum of its proper divisors (9910985).

49988407 is a wasteful number, since it uses less digits than its factorization.

49988407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 49988407 is about 7070.2480154518. The cubic root of 49988407 is about 368.3746750118.

The spelling of 49988407 in words is "forty-nine million, nine hundred eighty-eight thousand, four hundred seven".