49542657 has 4 divisors (see below), whose sum is σ = 66056880. Its totient is φ = 33028436.

The previous prime is 49542613. The next prime is 49542659. The reversal of 49542657 is 75624594.

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 49542657 - 2¹⁹ = 49018369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49542659) 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, 8257107 + ... + 8257112.

It is an arithmetic number, because the mean of its divisors is an integer number (16514220).

Almost surely, 2^49542657 is an apocalyptic number.

It is an amenable number.

49542657 is a deficient number, since it is larger than the sum of its proper divisors (16514223).

49542657 is a wasteful number, since it uses less digits than its factorization.

49542657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16514222.

The product of its digits is 302400, while the sum is 42.

The square root of 49542657 is about 7038.6544878975. The cubic root of 49542657 is about 367.2764636238.

The spelling of 49542657 in words is "forty-nine million, five hundred forty-two thousand, six hundred fifty-seven".