15525553423 has 2 divisors, whose sum is σ = 15525553424. Its totient is φ = 15525553422.

The previous prime is 15525553411. The next prime is 15525553481. The reversal of 15525553423 is 32435552551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15525553423 - 2¹⁷ = 15525422351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15525553523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7762776711 + 7762776712.

It is an arithmetic number, because the mean of its divisors is an integer number (7762776712).

Almost surely, 2^15525553423 is an apocalyptic number.

15525553423 is a deficient number, since it is larger than the sum of its proper divisors (1).

15525553423 is an equidigital number, since it uses as much as digits as its factorization.

15525553423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450000, while the sum is 40.

The spelling of 15525553423 in words is "fifteen billion, five hundred twenty-five million, five hundred fifty-three thousand, four hundred twenty-three".