49572989 has 4 divisors (see below), whose sum is σ = 49630140. Its totient is φ = 49515840.

The previous prime is 49572983. The next prime is 49572997. The reversal of 49572989 is 98927594.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33235225 + 16337764 = 5765^2 + 4042^2 .

It is a cyclic number.

It is not a de Polignac number, because 49572989 - 2¹⁶ = 49507453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49572989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49572983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27254 + ... + 29015.

It is an arithmetic number, because the mean of its divisors is an integer number (12407535).

Almost surely, 2^49572989 is an apocalyptic number.

It is an amenable number.

49572989 is a deficient number, since it is larger than the sum of its proper divisors (57151).

49572989 is an equidigital number, since it uses as much as digits as its factorization.

49572989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57150.

The product of its digits is 1632960, while the sum is 53.

The square root of 49572989 is about 7040.8088313773. The cubic root of 49572989 is about 367.3514021222.

The spelling of 49572989 in words is "forty-nine million, five hundred seventy-two thousand, nine hundred eighty-nine".