14525261421 has 32 divisors (see below), whose sum is σ = 21761837568. Its totient is φ = 8540331840.

The previous prime is 14525261357. The next prime is 14525261441. The reversal of 14525261421 is 12416252541.

It is a happy number.

It is not a de Polignac number, because 14525261421 - 2⁶ = 14525261357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14525261441) 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 in 31 ways as a sum of consecutive naturals, for example, 406546 + ... + 440828.

It is an arithmetic number, because the mean of its divisors is an integer number (680057424).

Almost surely, 2^14525261421 is an apocalyptic number.

14525261421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14525261421 is a deficient number, since it is larger than the sum of its proper divisors (7236576147).

14525261421 is a wasteful number, since it uses less digits than its factorization.

14525261421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34681.

The product of its digits is 19200, while the sum is 33.

The spelling of 14525261421 in words is "fourteen billion, five hundred twenty-five million, two hundred sixty-one thousand, four hundred twenty-one".