20725662 has 32 divisors (see below), whose sum is σ = 43130880. Its totient is φ = 6631520.

The previous prime is 20725631. The next prime is 20725667. The reversal of 20725662 is 26652702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20725667) 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, 53923 + ... + 54305.

It is an arithmetic number, because the mean of its divisors is an integer number (1347840).

Almost surely, 2^20725662 is an apocalyptic number.

20725662 is an abundant number, since it is smaller than the sum of its proper divisors (22405218).

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

20725662 is a wasteful number, since it uses less digits than its factorization.

20725662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20725662 is about 4552.5445632086. The cubic root of 20725662 is about 274.6857545437.

The spelling of 20725662 in words is "twenty million, seven hundred twenty-five thousand, six hundred sixty-two".