85550051 has 4 divisors (see below), whose sum is σ = 85852632. Its totient is φ = 85247472.

The previous prime is 85550039. The next prime is 85550063. The reversal of 85550051 is 15005558.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85550039) and next prime (85550063).

It is a cyclic number.

It is not a de Polignac number, because 85550051 - 2¹⁰ = 85549027 is a prime.

It is a super-2 number, since 2×85550051² = 14637622452205202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85549996 and 85550023.

It is not an unprimeable number, because it can be changed into a prime (85550071) 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, 150866 + ... + 151431.

It is an arithmetic number, because the mean of its divisors is an integer number (21463158).

Almost surely, 2^85550051 is an apocalyptic number.

85550051 is a deficient number, since it is larger than the sum of its proper divisors (302581).

85550051 is a wasteful number, since it uses less digits than its factorization.

85550051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302580.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 85550051 is about 9249.3270566026. The cubic root of 85550051 is about 440.6293524778.

The spelling of 85550051 in words is "eighty-five million, five hundred fifty thousand, fifty-one".