49225639 has 2 divisors, whose sum is σ = 49225640. Its totient is φ = 49225638.

The previous prime is 49225609. The next prime is 49225663. The reversal of 49225639 is 93652294.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49225639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49225609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24612819 + 24612820.

It is an arithmetic number, because the mean of its divisors is an integer number (24612820).

Almost surely, 2^49225639 is an apocalyptic number.

49225639 is a deficient number, since it is larger than the sum of its proper divisors (1).

49225639 is an equidigital number, since it uses as much as digits as its factorization.

49225639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 49225639 is about 7016.0985597410. The cubic root of 49225639 is about 366.4913995228.

The spelling of 49225639 in words is "forty-nine million, two hundred twenty-five thousand, six hundred thirty-nine".