1401002226525 has 24 divisors (see below), whose sum is σ = 2526898562784. Its totient is φ = 679273806400.

The previous prime is 1401002226523. The next prime is 1401002226557. The reversal of 1401002226525 is 5256222001041.

It is not a de Polignac number, because 1401002226525 - 2¹ = 1401002226523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401002226492 and 1401002226501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401002226523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849091434 + ... + 849093083.

It is an arithmetic number, because the mean of its divisors is an integer number (105287440116).

Almost surely, 2^{1401002226525} is an apocalyptic number.

1401002226525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401002226525 is a deficient number, since it is larger than the sum of its proper divisors (1125896336259).

1401002226525 is a wasteful number, since it uses less digits than its factorization.

1401002226525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698184541 (or 1698184536 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1401002226525 its reverse (5256222001041), we get a palindrome (6657224227566).

The spelling of 1401002226525 in words is "one trillion, four hundred one billion, two million, two hundred twenty-six thousand, five hundred twenty-five".