25142620 has 12 divisors (see below), whose sum is σ = 52799544. Its totient is φ = 10057040.

The previous prime is 25142599. The next prime is 25142627. The reversal of 25142620 is 2624152.

It is a junction number, because it is equal to n+sod(n) for n = 25142591 and 25142600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628546 + ... + 628585.

It is an arithmetic number, because the mean of its divisors is an integer number (4399962).

Almost surely, 2^25142620 is an apocalyptic number.

25142620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25142620 is an abundant number, since it is smaller than the sum of its proper divisors (27656924).

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

25142620 is a wasteful number, since it uses less digits than its factorization.

25142620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257140 (or 1257138 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 25142620 is about 5014.2417173487. The cubic root of 25142620 is about 292.9567510238.

Adding to 25142620 its reverse (2624152), we get a palindrome (27766772).

The spelling of 25142620 in words is "twenty-five million, one hundred forty-two thousand, six hundred twenty".