5251655407 has 2 divisors, whose sum is σ = 5251655408. Its totient is φ = 5251655406.

The previous prime is 5251655377. The next prime is 5251655411. The reversal of 5251655407 is 7045561525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5251655407 - 2¹¹ = 5251653359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5251655407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5251655477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625827703 + 2625827704.

It is an arithmetic number, because the mean of its divisors is an integer number (2625827704).

Almost surely, 2^5251655407 is an apocalyptic number.

5251655407 is a deficient number, since it is larger than the sum of its proper divisors (1).

5251655407 is an equidigital number, since it uses as much as digits as its factorization.

5251655407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210000, while the sum is 40.

The square root of 5251655407 is about 72468.3062241695. The cubic root of 5251655407 is about 1738.1959774955.

The spelling of 5251655407 in words is "five billion, two hundred fifty-one million, six hundred fifty-five thousand, four hundred seven".