49498921 has 4 divisors (see below), whose sum is σ = 51651072. Its totient is φ = 47346772.

The previous prime is 49498913. The next prime is 49498927. The reversal of 49498921 is 12989494.

49498921 = T₅₇₄₃ + T₅₇₄₄ + T₅₇₄₅.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49498921 - 2³ = 49498913 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49498927) 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, 1076041 + ... + 1076086.

It is an arithmetic number, because the mean of its divisors is an integer number (12912768).

Almost surely, 2^49498921 is an apocalyptic number.

49498921 is the 5745-th centered triangular number.

It is an amenable number.

49498921 is a deficient number, since it is larger than the sum of its proper divisors (2152151).

49498921 is a wasteful number, since it uses less digits than its factorization.

49498921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152150.

The product of its digits is 186624, while the sum is 46.

The square root of 49498921 is about 7035.5469581263. The cubic root of 49498921 is about 367.1683552209.

The spelling of 49498921 in words is "forty-nine million, four hundred ninety-eight thousand, nine hundred twenty-one".