52072045 has 4 divisors (see below), whose sum is σ = 62486460. Its totient is φ = 41657632.

The previous prime is 52072019. The next prime is 52072109. The reversal of 52072045 is 54027025.

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 35450116 + 16621929 = 5954^2 + 4077^2 .

It is a cyclic number.

It is not a de Polignac number, because 52072045 - 2¹⁵ = 52039277 is a prime.

It is a super-2 number, since 2×52072045² = 5422995740964050, which contains 22 as substring.

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, 5207200 + ... + 5207209.

It is an arithmetic number, because the mean of its divisors is an integer number (15621615).

Almost surely, 2^52072045 is an apocalyptic number.

It is an amenable number.

52072045 is a deficient number, since it is larger than the sum of its proper divisors (10414415).

52072045 is a wasteful number, since it uses less digits than its factorization.

52072045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10414414.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 52072045 is about 7216.0962438149. The cubic root of 52072045 is about 373.4234135487.

The spelling of 52072045 in words is "fifty-two million, seventy-two thousand, forty-five".