1401381502525 has 12 divisors (see below), whose sum is σ = 1770500103732. Its totient is φ = 1099952272640.

The previous prime is 1401381502483. The next prime is 1401381502541. The reversal of 1401381502525 is 5252051831041.

It can be written as a sum of positive squares in 6 ways, for example, as 173713070521 + 1227668432004 = 416789^2 + 1108002^2 .

It is not a de Polignac number, because 1401381502525 - 2⁹ = 1401381502013 is a prime.

It is a Duffinian number.

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, 528821884 + ... + 528824533.

It is an arithmetic number, because the mean of its divisors is an integer number (147541675311).

Almost surely, 2^{1401381502525} is an apocalyptic number.

It is an amenable number.

1401381502525 is a deficient number, since it is larger than the sum of its proper divisors (369118601207).

1401381502525 is a wasteful number, since it uses less digits than its factorization.

1401381502525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057646480 (or 1057646475 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 1401381502525 in words is "one trillion, four hundred one billion, three hundred eighty-one million, five hundred two thousand, five hundred twenty-five".