1525000401 has 12 divisors (see below), whose sum is σ = 2318714320. Its totient is φ = 963158040.

The previous prime is 1525000381. The next prime is 1525000423. The reversal of 1525000401 is 1040005251.

1525000401 is a `hidden beast` number, since 15 + 250 + 0 + 0 + 401 = 666.

It is not a de Polignac number, because 1525000401 - 2¹⁹ = 1524476113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1525000471) 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, 4458895 + ... + 4459236.

Almost surely, 2^1525000401 is an apocalyptic number.

It is an amenable number.

1525000401 is a deficient number, since it is larger than the sum of its proper divisors (793713919).

1525000401 is a wasteful number, since it uses less digits than its factorization.

1525000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8918156 (or 8918153 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1525000401 is about 39051.2535138118. The cubic root of 1525000401 is about 1151.0388598704.

Adding to 1525000401 its reverse (1040005251), we get a palindrome (2565005652).

The spelling of 1525000401 in words is "one billion, five hundred twenty-five million, four hundred one", and thus it is an aban number.