49644431 has 2 divisors, whose sum is σ = 49644432. Its totient is φ = 49644430.

The previous prime is 49644409. The next prime is 49644443. The reversal of 49644431 is 13444694.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49644431 - 2²² = 45450127 is a prime.

It is a super-2 number, since 2×49644431² = 4929139058627522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49644391 and 49644400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49644401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24822215 + 24822216.

It is an arithmetic number, because the mean of its divisors is an integer number (24822216).

Almost surely, 2^49644431 is an apocalyptic number.

49644431 is a deficient number, since it is larger than the sum of its proper divisors (1).

49644431 is an equidigital number, since it uses as much as digits as its factorization.

49644431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 49644431 is about 7045.8804275974. The cubic root of 49644431 is about 367.5277866290.

The spelling of 49644431 in words is "forty-nine million, six hundred forty-four thousand, four hundred thirty-one".