52294681 has 4 divisors (see below), whose sum is σ = 52676532. Its totient is φ = 51912832.

The previous prime is 52294673. The next prime is 52294717. The reversal of 52294681 is 18649225.

52294681 = T₅₉₀₃ + T₅₉₀₄ + T₅₉₀₅.

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 44342281 + 7952400 = 6659^2 + 2820^2 .

It is a cyclic number.

It is not a de Polignac number, because 52294681 - 2³ = 52294673 is a prime.

It is a super-2 number, since 2×52294681² = 5469467321783522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52294681.

It is not an unprimeable number, because it can be changed into a prime (52294621) 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, 190720 + ... + 190993.

It is an arithmetic number, because the mean of its divisors is an integer number (13169133).

Almost surely, 2^52294681 is an apocalyptic number.

52294681 is the 5905-th centered triangular number.

It is an amenable number.

52294681 is a deficient number, since it is larger than the sum of its proper divisors (381851).

52294681 is a wasteful number, since it uses less digits than its factorization.

52294681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381850.

The product of its digits is 34560, while the sum is 37.

The square root of 52294681 is about 7231.5061363453. The cubic root of 52294681 is about 373.9548521860.

It can be divided in two parts, 52294 and 681, that added together give a triangular number (52975 = T₃₂₅).

The spelling of 52294681 in words is "fifty-two million, two hundred ninety-four thousand, six hundred eighty-one".