49901992 has 24 divisors (see below), whose sum is σ = 108843210. Its totient is φ = 21386400.

The previous prime is 49901981. The next prime is 49901993. The reversal of 49901992 is 29910994.

It can be written as a sum of positive squares in only one way, i.e., 43480836 + 6421156 = 6594^2 + 2534^2 .

It is not an unprimeable number, because it can be changed into a prime (49901993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63259 + ... + 64042.

Almost surely, 2^49901992 is an apocalyptic number.

It is an amenable number.

49901992 is an abundant number, since it is smaller than the sum of its proper divisors (58941218).

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

49901992 is a wasteful number, since it uses less digits than its factorization.

49901992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127321 (or 127310 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 49901992 is about 7064.1342003108. The cubic root of 49901992 is about 368.1622827100.

The spelling of 49901992 in words is "forty-nine million, nine hundred one thousand, nine hundred ninety-two".