74725455 has 32 divisors (see below), whose sum is σ = 144681984. Its totient is φ = 32150016.

The previous prime is 74725433. The next prime is 74725457. The reversal of 74725455 is 55452747.

It is not a de Polignac number, because 74725455 - 2⁹ = 74724943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74725457) 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 31 ways as a sum of consecutive naturals, for example, 19147 + ... + 22716.

It is an arithmetic number, because the mean of its divisors is an integer number (4521312).

Almost surely, 2^74725455 is an apocalyptic number.

74725455 is a deficient number, since it is larger than the sum of its proper divisors (69956529).

74725455 is a wasteful number, since it uses less digits than its factorization.

74725455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41895.

The product of its digits is 196000, while the sum is 39.

The square root of 74725455 is about 8644.3886423506. The cubic root of 74725455 is about 421.2011252133.

The spelling of 74725455 in words is "seventy-four million, seven hundred twenty-five thousand, four hundred fifty-five".