52250491 has 2 divisors, whose sum is σ = 52250492. Its totient is φ = 52250490.

The previous prime is 52250477. The next prime is 52250519. The reversal of 52250491 is 19405225.

It is an a-pointer prime, because the next prime (52250519) can be obtained adding 52250491 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52250491 - 2²⁵ = 18696059 is a prime.

It is a super-2 number, since 2×52250491² = 5460227619482162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52253491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26125245 + 26125246.

It is an arithmetic number, because the mean of its divisors is an integer number (26125246).

Almost surely, 2^52250491 is an apocalyptic number.

52250491 is a deficient number, since it is larger than the sum of its proper divisors (1).

52250491 is an equidigital number, since it uses as much as digits as its factorization.

52250491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 52250491 is about 7228.4501105009. The cubic root of 52250491 is about 373.8494895152.

The spelling of 52250491 in words is "fifty-two million, two hundred fifty thousand, four hundred ninety-one".