1525988 has 12 divisors (see below), whose sum is σ = 2827692. Its totient is φ = 718080.

The previous prime is 1525987. The next prime is 1525999. The reversal of 1525988 is 8895251.

It can be written as a sum of positive squares in 2 ways, for example, as 529984 + 996004 = 728^2 + 998^2 .

It is a super-2 number, since 2×1525988² = 4657278752288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11153 + ... + 11288.

It is an arithmetic number, because the mean of its divisors is an integer number (235641).

2^1525988 is an apocalyptic number.

It is an amenable number.

1525988 is a deficient number, since it is larger than the sum of its proper divisors (1301704).

1525988 is a wasteful number, since it uses less digits than its factorization.

1525988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22462 (or 22460 counting only the distinct ones).

The product of its digits is 28800, while the sum is 38.

The square root of 1525988 is about 1235.3088682593. The cubic root of 1525988 is about 115.1287279373.

The spelling of 1525988 in words is "one million, five hundred twenty-five thousand, nine hundred eighty-eight".