52987394 has 8 divisors (see below), whose sum is σ = 79828860. Its totient is φ = 26377776.

The previous prime is 52987393. The next prime is 52987397. The reversal of 52987394 is 49378925.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52200625 + 786769 = 7225^2 + 887^2 .

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

It is a super-2 number, since 2×52987394² = 5615327845822472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52987391) 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, 57389 + ... + 58304.

Almost surely, 2^52987394 is an apocalyptic number.

52987394 is a deficient number, since it is larger than the sum of its proper divisors (26841466).

52987394 is a wasteful number, since it uses less digits than its factorization.

52987394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115924.

The product of its digits is 544320, while the sum is 47.

The square root of 52987394 is about 7279.2440541584. The cubic root of 52987394 is about 375.5987920932.

The spelling of 52987394 in words is "fifty-two million, nine hundred eighty-seven thousand, three hundred ninety-four".