1525626 has 24 divisors (see below), whose sum is σ = 3335904. Its totient is φ = 503880.

The previous prime is 1525609. The next prime is 1525633. The reversal of 1525626 is 6265251.

1525626 is a `hidden beast` number, since 15 + 25 + 626 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1525626.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2035 + ... + 2681.

It is an arithmetic number, because the mean of its divisors is an integer number (138996).

2^1525626 is an apocalyptic number.

1525626 is an abundant number, since it is smaller than the sum of its proper divisors (1810278).

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

1525626 is a wasteful number, since it uses less digits than its factorization.

1525626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 783 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1525626 is about 1235.1623375087. The cubic root of 1525626 is about 115.1196234761.

It can be divided in two parts, 152 and 5626, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 1525626 in words is "one million, five hundred twenty-five thousand, six hundred twenty-six".