49987523 has 2 divisors, whose sum is σ = 49987524. Its totient is φ = 49987522.

The previous prime is 49987517. The next prime is 49987529. The reversal of 49987523 is 32578994.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (49987517) and next prime (49987529).

It is a cyclic number.

It is not a de Polignac number, because 49987523 - 2¹⁰ = 49986499 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (49987529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24993761 + 24993762.

It is an arithmetic number, because the mean of its divisors is an integer number (24993762).

Almost surely, 2^49987523 is an apocalyptic number.

49987523 is a deficient number, since it is larger than the sum of its proper divisors (1).

49987523 is an equidigital number, since it uses as much as digits as its factorization.

49987523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 49987523 is about 7070.1854996881. The cubic root of 49987523 is about 368.3725035407.

It can be divided in two parts, 4998 and 7523, that added together give a palindrome (12521).

The spelling of 49987523 in words is "forty-nine million, nine hundred eighty-seven thousand, five hundred twenty-three".