15101002020425 has 12 divisors (see below), whose sum is σ = 18725295559440. Its totient is φ = 12080767387920.

The previous prime is 15101002020421. The next prime is 15101002020509. The reversal of 15101002020425 is 52402020010151.

It is not a de Polignac number, because 15101002020425 - 2² = 15101002020421 is a prime.

It is a super-4 number, since 4×15101002020425⁴ (a number of 54 digits) contains 4444 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15101002020425.

It is not an unprimeable number, because it can be changed into a prime (15101002020421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11834594 + ... + 13048356.

It is an arithmetic number, because the mean of its divisors is an integer number (1560441296620).

Almost surely, 2^{15101002020425} is an apocalyptic number.

It is an amenable number.

15101002020425 is a deficient number, since it is larger than the sum of its proper divisors (3624293539015).

15101002020425 is a wasteful number, since it uses less digits than its factorization.

15101002020425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711432 (or 1711427 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 15101002020425 its reverse (52402020010151), we get a palindrome (67503022030576).

The spelling of 15101002020425 in words is "fifteen trillion, one hundred one billion, two million, twenty thousand, four hundred twenty-five".