54551807 has 2 divisors, whose sum is σ = 54551808. Its totient is φ = 54551806.

The previous prime is 54551797. The next prime is 54551857. The reversal of 54551807 is 70815545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54551807 - 2⁸ = 54551551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54551857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27275903 + 27275904.

It is an arithmetic number, because the mean of its divisors is an integer number (27275904).

Almost surely, 2^54551807 is an apocalyptic number.

54551807 is a deficient number, since it is larger than the sum of its proper divisors (1).

54551807 is an equidigital number, since it uses as much as digits as its factorization.

54551807 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 54551807 is about 7385.9195094450. The cubic root of 54551807 is about 379.2594232889.

The spelling of 54551807 in words is "fifty-four million, five hundred fifty-one thousand, eight hundred seven".