75574407 has 4 divisors (see below), whose sum is σ = 100765880. Its totient is φ = 50382936.

The previous prime is 75574399. The next prime is 75574409. The reversal of 75574407 is 70447557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70447557 = 3 ⋅23482519.

It is not a de Polignac number, because 75574407 - 2³ = 75574399 is a prime.

It is a super-2 number, since 2×75574407² = 11422981986803298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75574409) 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, 12595732 + ... + 12595737.

It is an arithmetic number, because the mean of its divisors is an integer number (25191470).

Almost surely, 2^75574407 is an apocalyptic number.

75574407 is a deficient number, since it is larger than the sum of its proper divisors (25191473).

75574407 is a wasteful number, since it uses less digits than its factorization.

75574407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25191472.

The product of its (nonzero) digits is 137200, while the sum is 39.

The square root of 75574407 is about 8693.3541858134. The cubic root of 75574407 is about 422.7902038517.

The spelling of 75574407 in words is "seventy-five million, five hundred seventy-four thousand, four hundred seven".