49540807 has 4 divisors (see below), whose sum is σ = 49561816. Its totient is φ = 49519800.

The previous prime is 49540769. The next prime is 49540819. The reversal of 49540807 is 70804594.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49540807 is a prime.

It is a super-2 number, since 2×49540807² = 4908583116422498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49540877) 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, 6444 + ... + 11857.

It is an arithmetic number, because the mean of its divisors is an integer number (12390454).

Almost surely, 2^49540807 is an apocalyptic number.

49540807 is a deficient number, since it is larger than the sum of its proper divisors (21009).

49540807 is a wasteful number, since it uses less digits than its factorization.

49540807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21008.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 49540807 is about 7038.5230695083. The cubic root of 49540807 is about 367.2718920085.

The spelling of 49540807 in words is "forty-nine million, five hundred forty thousand, eight hundred seven".