25020738 has 42 divisors (see below), whose sum is σ = 56703747. Its totient is φ = 8276580.

The previous prime is 25020733. The next prime is 25020761. The reversal of 25020738 is 83702052.

It can be written as a sum of positive squares in only one way, i.e., 12510369 + 12510369 = 3537^2 + 3537^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3537.

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

It is not an unprimeable number, because it can be changed into a prime (25020731) by changing a digit.

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 20 ways as a sum of consecutive naturals, for example, 190933 + ... + 191063.

Almost surely, 2^25020738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25020738

25020738 is an abundant number, since it is smaller than the sum of its proper divisors (31683009).

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

25020738 is an frugal number, since it uses more digits than its factorization.

25020738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25020738 is about 5002.0733701136. The cubic root of 25020738 is about 292.4826025155.

The spelling of 25020738 in words is "twenty-five million, twenty thousand, seven hundred thirty-eight".