49997453 has 4 divisors (see below), whose sum is σ = 54542688. Its totient is φ = 45452220.

The previous prime is 49997447. The next prime is 49997473. The reversal of 49997453 is 35479994.

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 not a de Polignac number, because 49997453 - 2¹² = 49993357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49997473) 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, 2272601 + ... + 2272622.

It is an arithmetic number, because the mean of its divisors is an integer number (13635672).

Almost surely, 2^49997453 is an apocalyptic number.

It is an amenable number.

49997453 is a deficient number, since it is larger than the sum of its proper divisors (4545235).

49997453 is a wasteful number, since it uses less digits than its factorization.

49997453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545234.

The product of its digits is 1224720, while the sum is 50.

The square root of 49997453 is about 7070.8877094747. The cubic root of 49997453 is about 368.3968942723.

The spelling of 49997453 in words is "forty-nine million, nine hundred ninety-seven thousand, four hundred fifty-three".