24640624425 has 48 divisors (see below), whose sum is σ = 41047158528. Its totient is φ = 13042555200.

The previous prime is 24640624423. The next prime is 24640624427. The reversal of 24640624425 is 52442604642.

It is an interprime number because it is at equal distance from previous prime (24640624423) and next prime (24640624427).

It is not a de Polignac number, because 24640624425 - 2¹ = 24640624423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (24640624423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15683890 + ... + 15685460.

It is an arithmetic number, because the mean of its divisors is an integer number (855149136).

Almost surely, 2^24640624425 is an apocalyptic number.

24640624425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24640624425 is a deficient number, since it is larger than the sum of its proper divisors (16406534103).

24640624425 is a wasteful number, since it uses less digits than its factorization.

24640624425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030 (or 3025 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 39.

The spelling of 24640624425 in words is "twenty-four billion, six hundred forty million, six hundred twenty-four thousand, four hundred twenty-five".