49491553 has 2 divisors, whose sum is σ = 49491554. Its totient is φ = 49491552.

The previous prime is 49491529. The next prime is 49491571. The reversal of 49491553 is 35519494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28174864 + 21316689 = 5308^2 + 4617^2 .

It is a cyclic number.

It is not a de Polignac number, because 49491553 - 2⁹ = 49491041 is a prime.

It is not a weakly prime, because it can be changed into another prime (49491503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24745776 + 24745777.

It is an arithmetic number, because the mean of its divisors is an integer number (24745777).

Almost surely, 2^49491553 is an apocalyptic number.

It is an amenable number.

49491553 is a deficient number, since it is larger than the sum of its proper divisors (1).

49491553 is an equidigital number, since it uses as much as digits as its factorization.

49491553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 49491553 is about 7035.0233119727. The cubic root of 49491553 is about 367.1501364354.

The spelling of 49491553 in words is "forty-nine million, four hundred ninety-one thousand, five hundred fifty-three".