748774553 has 4 divisors (see below), whose sum is σ = 788183760. Its totient is φ = 709365348.

The previous prime is 748774547. The next prime is 748774597. The reversal of 748774553 is 355477847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-748774553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748774153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19704575 + ... + 19704612.

It is an arithmetic number, because the mean of its divisors is an integer number (197045940).

Almost surely, 2^748774553 is an apocalyptic number.

It is an amenable number.

748774553 is a deficient number, since it is larger than the sum of its proper divisors (39409207).

748774553 is a wasteful number, since it uses less digits than its factorization.

748774553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39409206.

The product of its digits is 3292800, while the sum is 50.

The square root of 748774553 is about 27363.7452297744. The cubic root of 748774553 is about 908.0651855529.

The spelling of 748774553 in words is "seven hundred forty-eight million, seven hundred seventy-four thousand, five hundred fifty-three".