99554951 has 2 divisors, whose sum is σ = 99554952. Its totient is φ = 99554950.

The previous prime is 99554911. The next prime is 99554957. The reversal of 99554951 is 15945599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99554951 - 2¹⁴ = 99538567 is a prime.

It is a super-2 number, since 2×99554951² = 19822376537224802, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99554896 and 99554905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99554957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49777475 + 49777476.

It is an arithmetic number, because the mean of its divisors is an integer number (49777476).

Almost surely, 2^99554951 is an apocalyptic number.

99554951 is a deficient number, since it is larger than the sum of its proper divisors (1).

99554951 is an equidigital number, since it uses as much as digits as its factorization.

99554951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 364500, while the sum is 47.

The square root of 99554951 is about 9977.7227361758. The cubic root of 99554951 is about 463.4692811684.

The spelling of 99554951 in words is "ninety-nine million, five hundred fifty-four thousand, nine hundred fifty-one".