15423145220025 has 36 divisors (see below), whose sum is σ = 27624939204720. Its totient is φ = 8225566552800.

The previous prime is 15423145219981. The next prime is 15423145220039. The reversal of 15423145220025 is 52002254132451.

15423145220025 is a `hidden beast` number, since 1 + 5 + 423 + 1 + 4 + 5 + 2 + 200 + 25 = 666.

It is not a de Polignac number, because 15423145220025 - 2¹⁵ = 15423145187257 is a prime.

It is a super-3 number, since 3×15423145220025³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17878066 + ... + 18720884.

Almost surely, 2^{15423145220025} is an apocalyptic number.

15423145220025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15423145220025 is a deficient number, since it is larger than the sum of its proper divisors (12201793984695).

15423145220025 is a wasteful number, since it uses less digits than its factorization.

15423145220025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924166 (or 924158 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 15423145220025 its reverse (52002254132451), we get a palindrome (67425399352476).

The spelling of 15423145220025 in words is "fifteen trillion, four hundred twenty-three billion, one hundred forty-five million, two hundred twenty thousand, twenty-five".