1625049 has 16 divisors (see below), whose sum is σ = 2430400. Its totient is φ = 1073088.

The previous prime is 1625027. The next prime is 1625059. The reversal of 1625049 is 9405261.

It is not a de Polignac number, because 1625049 - 2⁵ = 1625017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1625059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3537 + ... + 3969.

It is an arithmetic number, because the mean of its divisors is an integer number (151900).

2^1625049 is an apocalyptic number.

It is an amenable number.

1625049 is a deficient number, since it is larger than the sum of its proper divisors (805351).

1625049 is a wasteful number, since it uses less digits than its factorization.

1625049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1625049 is about 1274.7740976346. The cubic root of 1625049 is about 117.5679160706.

The spelling of 1625049 in words is "one million, six hundred twenty-five thousand, forty-nine".