52155407 has 2 divisors, whose sum is σ = 52155408. Its totient is φ = 52155406.

The previous prime is 52155401. The next prime is 52155449. The reversal of 52155407 is 70455125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52155407 - 2⁶ = 52155343 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52155407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52155401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26077703 + 26077704.

It is an arithmetic number, because the mean of its divisors is an integer number (26077704).

Almost surely, 2^52155407 is an apocalyptic number.

52155407 is a deficient number, since it is larger than the sum of its proper divisors (1).

52155407 is an equidigital number, since it uses as much as digits as its factorization.

52155407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 52155407 is about 7221.8700486785. The cubic root of 52155407 is about 373.6225781596.

The spelling of 52155407 in words is "fifty-two million, one hundred fifty-five thousand, four hundred seven".