49251623 has 2 divisors, whose sum is σ = 49251624. Its totient is φ = 49251622.

The previous prime is 49251617. The next prime is 49251647. The reversal of 49251623 is 32615294.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49251623 - 2¹⁶ = 49186087 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49251623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49257623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24625811 + 24625812.

It is an arithmetic number, because the mean of its divisors is an integer number (24625812).

Almost surely, 2^49251623 is an apocalyptic number.

49251623 is a deficient number, since it is larger than the sum of its proper divisors (1).

49251623 is an equidigital number, since it uses as much as digits as its factorization.

49251623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 49251623 is about 7017.9500568186. The cubic root of 49251623 is about 366.5558729533. Note that the first 3 decimals are identical.

The spelling of 49251623 in words is "forty-nine million, two hundred fifty-one thousand, six hundred twenty-three".