52507457 has 4 divisors (see below), whose sum is σ = 52544256. Its totient is φ = 52470660.

The previous prime is 52507417. The next prime is 52507489. The reversal of 52507457 is 75470525.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52507457 - 2⁸ = 52507201 is a prime.

It is a super-3 number, since 3×52507457³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52507417) 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, 16169 + ... + 19142.

It is an arithmetic number, because the mean of its divisors is an integer number (13136064).

Almost surely, 2^52507457 is an apocalyptic number.

It is an amenable number.

52507457 is a deficient number, since it is larger than the sum of its proper divisors (36799).

52507457 is a wasteful number, since it uses less digits than its factorization.

52507457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36798.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 52507457 is about 7246.2029367111. The cubic root of 52507457 is about 374.4613469411.

The spelling of 52507457 in words is "fifty-two million, five hundred seven thousand, four hundred fifty-seven".