1622089725 has 24 divisors (see below), whose sum is σ = 2768370432. Its totient is φ = 837206400.

The previous prime is 1622089723. The next prime is 1622089753. The reversal of 1622089725 is 5279802261.

It is not a de Polignac number, because 1622089725 - 2¹ = 1622089723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622089723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346512 + ... + 351161.

It is an arithmetic number, because the mean of its divisors is an integer number (115348768).

Almost surely, 2^1622089725 is an apocalyptic number.

1622089725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1622089725 is a deficient number, since it is larger than the sum of its proper divisors (1146280707).

1622089725 is a wasteful number, since it uses less digits than its factorization.

1622089725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697717 (or 697712 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1622089725 is about 40275.1750461745. The cubic root of 1622089725 is about 1174.9650751653.

The spelling of 1622089725 in words is "one billion, six hundred twenty-two million, eighty-nine thousand, seven hundred twenty-five".