742475507 has 4 divisors (see below), whose sum is σ = 742530096. Its totient is φ = 742420920.

The previous prime is 742475477. The next prime is 742475549. The reversal of 742475507 is 705574247.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 705574247 = 7 ⋅100796321.

It is a cyclic number.

It is not a de Polignac number, because 742475507 - 2¹⁰ = 742474483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742415507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11282 + ... + 40152.

It is an arithmetic number, because the mean of its divisors is an integer number (185632524).

Almost surely, 2^742475507 is an apocalyptic number.

742475507 is a deficient number, since it is larger than the sum of its proper divisors (54589).

742475507 is a wasteful number, since it uses less digits than its factorization.

742475507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54588.

The product of its (nonzero) digits is 274400, while the sum is 41.

The square root of 742475507 is about 27248.4037514127. The cubic root of 742475507 is about 905.5116535344.

The spelling of 742475507 in words is "seven hundred forty-two million, four hundred seventy-five thousand, five hundred seven".