5621425951 has 4 divisors (see below), whose sum is σ = 5802762304. Its totient is φ = 5440089600.

The previous prime is 5621425933. The next prime is 5621425961. The reversal of 5621425951 is 1595241265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1595241265 = 5 ⋅319048253.

It is a cyclic number.

It is not a de Polignac number, because 5621425951 - 2²³ = 5613037343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621425961) 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, 90668130 + ... + 90668191.

It is an arithmetic number, because the mean of its divisors is an integer number (1450690576).

Almost surely, 2^5621425951 is an apocalyptic number.

5621425951 is a deficient number, since it is larger than the sum of its proper divisors (181336353).

5621425951 is a wasteful number, since it uses less digits than its factorization.

5621425951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181336352.

The product of its digits is 108000, while the sum is 40.

The square root of 5621425951 is about 74976.1692206264. The cubic root of 5621425951 is about 1778.0699054491.

The spelling of 5621425951 in words is "five billion, six hundred twenty-one million, four hundred twenty-five thousand, nine hundred fifty-one".