1499625625 has 15 divisors (see below), whose sum is σ = 1875142731. Its totient is φ = 1198926000.

The previous prime is 1499625571. The next prime is 1499625629. The reversal of 1499625625 is 5265269941.

The square root of 1499625625 is 38725.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 1335683209 + 163942416 = 36547^2 + 12804^2 .

It is not a de Polignac number, because 1499625625 - 2⁷ = 1499625497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1499625629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 967351 + ... + 968899.

Almost surely, 2^1499625625 is an apocalyptic number.

1499625625 is the 38725-th square number.

1499625625 is the 19363-rd centered octagonal number.

It is an amenable number.

1499625625 is a deficient number, since it is larger than the sum of its proper divisors (375517106).

1499625625 is an frugal number, since it uses more digits than its factorization.

1499625625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 1554 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The cubic root of 1499625625 is about 1144.6190007638.

Multiplying 1499625625 by its sum of digits (49), we get a square (73481655625 = 271075²).

The spelling of 1499625625 in words is "one billion, four hundred ninety-nine million, six hundred twenty-five thousand, six hundred twenty-five".