52645145 has 8 divisors (see below), whose sum is σ = 72199104. Its totient is φ = 36099504.

The previous prime is 52645081. The next prime is 52645193. The reversal of 52645145 is 54154625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52645145 - 2⁶ = 52645081 is a prime.

It is a super-2 number, since 2×52645145² = 5543022584142050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752039 + ... + 752108.

It is an arithmetic number, because the mean of its divisors is an integer number (9024888).

Almost surely, 2^52645145 is an apocalyptic number.

It is an amenable number.

52645145 is a deficient number, since it is larger than the sum of its proper divisors (19553959).

52645145 is a wasteful number, since it uses less digits than its factorization.

52645145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504159.

The product of its digits is 24000, while the sum is 32.

The square root of 52645145 is about 7255.6974165135. The cubic root of 52645145 is about 374.7883724444.

The spelling of 52645145 in words is "fifty-two million, six hundred forty-five thousand, one hundred forty-five".