1401406525 has 12 divisors (see below), whose sum is σ = 1738256800. Its totient is φ = 1120794480.

The previous prime is 1401406493. The next prime is 1401406547. The reversal of 1401406525 is 5256041041.

It is not a de Polignac number, because 1401406525 - 2⁵ = 1401406493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401406493 and 1401406502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113086 + ... + 124864.

Almost surely, 2^1401406525 is an apocalyptic number.

It is an amenable number.

1401406525 is a deficient number, since it is larger than the sum of its proper divisors (336850275).

1401406525 is a wasteful number, since it uses less digits than its factorization.

1401406525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16548 (or 16543 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1401406525 is about 37435.3646302530. The cubic root of 1401406525 is about 1119.0634509685.

Adding to 1401406525 its reverse (5256041041), we get a palindrome (6657447566).

The spelling of 1401406525 in words is "one billion, four hundred one million, four hundred six thousand, five hundred twenty-five".