5521401251 has 2 divisors, whose sum is σ = 5521401252. Its totient is φ = 5521401250.

The previous prime is 5521401217. The next prime is 5521401271. The reversal of 5521401251 is 1521041255.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5521401251 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5521401251.

It is not a weakly prime, because it can be changed into another prime (5521401271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760700625 + 2760700626.

It is an arithmetic number, because the mean of its divisors is an integer number (2760700626).

Almost surely, 2^5521401251 is an apocalyptic number.

5521401251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521401251 is an equidigital number, since it uses as much as digits as its factorization.

5521401251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 5521401251 is about 74306.1319878784. The cubic root of 5521401251 is about 1767.4607157033.

The spelling of 5521401251 in words is "five billion, five hundred twenty-one million, four hundred one thousand, two hundred fifty-one".