52390407 has 16 divisors (see below), whose sum is σ = 71326080. Its totient is φ = 34195872.

The previous prime is 52390397. The next prime is 52390411. The reversal of 52390407 is 70409325.

It is not a de Polignac number, because 52390407 - 2¹⁰ = 52389383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52390487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60993 + ... + 61845.

It is an arithmetic number, because the mean of its divisors is an integer number (4457880).

Almost surely, 2^52390407 is an apocalyptic number.

52390407 is a deficient number, since it is larger than the sum of its proper divisors (18935673).

52390407 is a wasteful number, since it uses less digits than its factorization.

52390407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 52390407 is about 7238.1217867621. The cubic root of 52390407 is about 374.1828892845.

The spelling of 52390407 in words is "fifty-two million, three hundred ninety thousand, four hundred seven".