55233151 has 2 divisors, whose sum is σ = 55233152. Its totient is φ = 55233150.

The previous prime is 55233149. The next prime is 55233161. The reversal of 55233151 is 15133255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55233151 - 2¹ = 55233149 is a prime.

Together with 55233149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55233161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27616575 + 27616576.

It is an arithmetic number, because the mean of its divisors is an integer number (27616576).

Almost surely, 2^55233151 is an apocalyptic number.

55233151 is a deficient number, since it is larger than the sum of its proper divisors (1).

55233151 is an equidigital number, since it uses as much as digits as its factorization.

55233151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2250, while the sum is 25.

The square root of 55233151 is about 7431.9009008463. The cubic root of 55233151 is about 380.8318595462.

The spelling of 55233151 in words is "fifty-five million, two hundred thirty-three thousand, one hundred fifty-one".