622055531 has 2 divisors, whose sum is σ = 622055532. Its totient is φ = 622055530.

The previous prime is 622055527. The next prime is 622055543. The reversal of 622055531 is 135550226.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 622055531 - 2² = 622055527 is a prime.

It is a super-2 number, since 2×622055531² = 773906167295383922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 622055494 and 622055503.

It is not a weakly prime, because it can be changed into another prime (622055131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311027765 + 311027766.

It is an arithmetic number, because the mean of its divisors is an integer number (311027766).

Almost surely, 2^622055531 is an apocalyptic number.

622055531 is a deficient number, since it is larger than the sum of its proper divisors (1).

622055531 is an equidigital number, since it uses as much as digits as its factorization.

622055531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 622055531 is about 24941.0410969550. The cubic root of 622055531 is about 853.6432003354.

The spelling of 622055531 in words is "six hundred twenty-two million, fifty-five thousand, five hundred thirty-one".