742503005 has 4 divisors (see below), whose sum is σ = 891003612. Its totient is φ = 594002400.

The previous prime is 742502987. The next prime is 742503011. The reversal of 742503005 is 500305247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116402521 + 626100484 = 10789^2 + 25022^2 .

It is not a de Polignac number, because 742503005 - 2⁶ = 742502941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74250296 + ... + 74250305.

It is an arithmetic number, because the mean of its divisors is an integer number (222750903).

Almost surely, 2^742503005 is an apocalyptic number.

It is an amenable number.

742503005 is a deficient number, since it is larger than the sum of its proper divisors (148500607).

742503005 is a wasteful number, since it uses less digits than its factorization.

742503005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148500606.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 742503005 is about 27248.9083267569. The cubic root of 742503005 is about 905.5228321083.

The spelling of 742503005 in words is "seven hundred forty-two million, five hundred three thousand, five".