52290045 has 48 divisors (see below), whose sum is σ = 99318960. Its totient is φ = 25331712.

The previous prime is 52290037. The next prime is 52290053. The reversal of 52290045 is 54009225.

It is an interprime number because it is at equal distance from previous prime (52290037) and next prime (52290053).

It can be written as a sum of positive squares in 8 ways, for example, as 363609 + 51926436 = 603^2 + 7206^2 .

It is not a de Polignac number, because 52290045 - 2³ = 52290037 is a prime.

It is a super-2 number, since 2×52290045² = 5468497612204050, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21007 + ... + 23363.

It is an arithmetic number, because the mean of its divisors is an integer number (2069145).

Almost surely, 2^52290045 is an apocalyptic number.

It is an amenable number.

52290045 is a deficient number, since it is larger than the sum of its proper divisors (47028915).

52290045 is a wasteful number, since it uses less digits than its factorization.

52290045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2411 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 52290045 is about 7231.1855874400. The cubic root of 52290045 is about 373.9438013111.

The spelling of 52290045 in words is "fifty-two million, two hundred ninety thousand, forty-five".