49542247537 has 2 divisors, whose sum is σ = 49542247538. Its totient is φ = 49542247536.

The previous prime is 49542247477. The next prime is 49542247561. The reversal of 49542247537 is 73574224594.

49542247537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39977603136 + 9564644401 = 199944^2 + 97799^2 .

It is a cyclic number.

It is not a de Polignac number, because 49542247537 - 2⁷ = 49542247409 is a prime.

It is not a weakly prime, because it can be changed into another prime (49542245537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24771123768 + 24771123769.

It is an arithmetic number, because the mean of its divisors is an integer number (24771123769).

Almost surely, 2^49542247537 is an apocalyptic number.

It is an amenable number.

49542247537 is a deficient number, since it is larger than the sum of its proper divisors (1).

49542247537 is an equidigital number, since it uses as much as digits as its factorization.

49542247537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 52.

The spelling of 49542247537 in words is "forty-nine billion, five hundred forty-two million, two hundred forty-seven thousand, five hundred thirty-seven".