52151591 has 2 divisors, whose sum is σ = 52151592. Its totient is φ = 52151590.

The previous prime is 52151581. The next prime is 52151669. The reversal of 52151591 is 19515125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52151591 - 2¹⁴ = 52135207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52151501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26075795 + 26075796.

It is an arithmetic number, because the mean of its divisors is an integer number (26075796).

Almost surely, 2^52151591 is an apocalyptic number.

52151591 is a deficient number, since it is larger than the sum of its proper divisors (1).

52151591 is an equidigital number, since it uses as much as digits as its factorization.

52151591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2250, while the sum is 29.

The square root of 52151591 is about 7221.6058463475. The cubic root of 52151591 is about 373.6134657868.

The spelling of 52151591 in words is "fifty-two million, one hundred fifty-one thousand, five hundred ninety-one".