1525001016 has 128 divisors (see below), whose sum is σ = 4960051200. Its totient is φ = 378871680.

The previous prime is 1525000973. The next prime is 1525001033. The reversal of 1525001016 is 6101005251.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1525000983 and 1525001001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24565 + ... + 60443.

It is an arithmetic number, because the mean of its divisors is an integer number (38750400).

Almost surely, 2^1525001016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1525001016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2480025600).

1525001016 is an abundant number, since it is smaller than the sum of its proper divisors (3435050184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1525001016 is a wasteful number, since it uses less digits than its factorization.

1525001016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35929 (or 35925 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1525001016 is about 39051.2613880781. The cubic root of 1525001016 is about 1151.0390146002.

Adding to 1525001016 its reverse (6101005251), we get a palindrome (7626006267).

The spelling of 1525001016 in words is "one billion, five hundred twenty-five million, one thousand, sixteen".