55154807 has 2 divisors, whose sum is σ = 55154808. Its totient is φ = 55154806.

The previous prime is 55154773. The next prime is 55154819. The reversal of 55154807 is 70845155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55154807 - 2⁸ = 55154551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55154837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27577403 + 27577404.

It is an arithmetic number, because the mean of its divisors is an integer number (27577404).

Almost surely, 2^55154807 is an apocalyptic number.

55154807 is a deficient number, since it is larger than the sum of its proper divisors (1).

55154807 is an equidigital number, since it uses as much as digits as its factorization.

55154807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 55154807 is about 7426.6282389790. The cubic root of 55154807 is about 380.6517140573.

The spelling of 55154807 in words is "fifty-five million, one hundred fifty-four thousand, eight hundred seven".