5402951581 has 2 divisors, whose sum is σ = 5402951582. Its totient is φ = 5402951580.

The previous prime is 5402951579. The next prime is 5402951621. The reversal of 5402951581 is 1851592045.

It is an a-pointer prime, because the next prime (5402951621) can be obtained adding 5402951581 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5162422500 + 240529081 = 71850^2 + 15509^2 .

It is a cyclic number.

It is not a de Polignac number, because 5402951581 - 2¹ = 5402951579 is a prime.

It is a super-2 number, since 2×5402951581² = 58383771573260799122, which contains 22 as substring.

Together with 5402951579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5402954581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701475790 + 2701475791.

It is an arithmetic number, because the mean of its divisors is an integer number (2701475791).

Almost surely, 2^5402951581 is an apocalyptic number.

5402951581 is the 46489-th centered pentagonal number.

It is an amenable number.

5402951581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5402951581 is an equidigital number, since it uses as much as digits as its factorization.

5402951581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 40.

The square root of 5402951581 is about 73504.7725049197. The cubic root of 5402951581 is about 1754.7302319365.

The spelling of 5402951581 in words is "five billion, four hundred two million, nine hundred fifty-one thousand, five hundred eighty-one".