2251402477 has 2 divisors, whose sum is σ = 2251402478. Its totient is φ = 2251402476.

The previous prime is 2251402459. The next prime is 2251402487. The reversal of 2251402477 is 7742041522.

2251402477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2143782601 + 107619876 = 46301^2 + 10374^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251402477 - 2¹¹ = 2251400429 is a prime.

It is a super-2 number, since 2×2251402477² = 10137626226883471058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251402487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125701238 + 1125701239.

It is an arithmetic number, because the mean of its divisors is an integer number (1125701239).

Almost surely, 2^2251402477 is an apocalyptic number.

It is an amenable number.

2251402477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251402477 is an equidigital number, since it uses as much as digits as its factorization.

2251402477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 2251402477 is about 47448.9460051538. The cubic root of 2251402477 is about 1310.6429020016.

Adding to 2251402477 its reverse (7742041522), we get a palindrome (9993443999).

The spelling of 2251402477 in words is "two billion, two hundred fifty-one million, four hundred two thousand, four hundred seventy-seven".