56503147 has 2 divisors, whose sum is σ = 56503148. Its totient is φ = 56503146.

The previous prime is 56503123. The next prime is 56503151. The reversal of 56503147 is 74130565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56503147 - 2¹¹ = 56501099 is a prime.

It is not a weakly prime, because it can be changed into another prime (56503547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28251573 + 28251574.

It is an arithmetic number, because the mean of its divisors is an integer number (28251574).

Almost surely, 2^56503147 is an apocalyptic number.

56503147 is a deficient number, since it is larger than the sum of its proper divisors (1).

56503147 is an equidigital number, since it uses as much as digits as its factorization.

56503147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 56503147 is about 7516.8575215977. The cubic root of 56503147 is about 383.7286381245.

The spelling of 56503147 in words is "fifty-six million, five hundred three thousand, one hundred forty-seven".