5425250021 has 8 divisors (see below), whose sum is σ = 5451381600. Its totient is φ = 5399179632.

The previous prime is 5425249969. The next prime is 5425250041. The reversal of 5425250021 is 1200525245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5425250021 - 2⁶ = 5425249957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5425250041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167666 + ... + 197388.

It is an arithmetic number, because the mean of its divisors is an integer number (681422700).

Almost surely, 2^5425250021 is an apocalyptic number.

It is an amenable number.

5425250021 is a deficient number, since it is larger than the sum of its proper divisors (26131579).

5425250021 is a wasteful number, since it uses less digits than its factorization.

5425250021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30595.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 5425250021 is about 73656.2965468669. The cubic root of 5425250021 is about 1757.1408921988.

Adding to 5425250021 its reverse (1200525245), we get a palindrome (6625775266).

The spelling of 5425250021 in words is "five billion, four hundred twenty-five million, two hundred fifty thousand, twenty-one".