49661431 has 8 divisors (see below), whose sum is σ = 51054080. Its totient is φ = 48279672.

The previous prime is 49661407. The next prime is 49661441. The reversal of 49661431 is 13416694.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49661431 - 2¹¹ = 49659383 is a prime.

It is a super-2 number, since 2×49661431² = 4932515457935522, 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 (49661441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7000 + ... + 12178.

It is an arithmetic number, because the mean of its divisors is an integer number (6381760).

Almost surely, 2^49661431 is an apocalyptic number.

49661431 is a deficient number, since it is larger than the sum of its proper divisors (1392649).

49661431 is a wasteful number, since it uses less digits than its factorization.

49661431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445.

The product of its digits is 15552, while the sum is 34.

The square root of 49661431 is about 7047.0867030284. The cubic root of 49661431 is about 367.5697333234.

The spelling of 49661431 in words is "forty-nine million, six hundred sixty-one thousand, four hundred thirty-one".