51893061 has 32 divisors (see below), whose sum is σ = 80466048. Its totient is φ = 29399040.

The previous prime is 51893033. The next prime is 51893077. The reversal of 51893061 is 16039815.

It is not a de Polignac number, because 51893061 - 2⁹ = 51892549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51893021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130515 + ... + 130911.

It is an arithmetic number, because the mean of its divisors is an integer number (2514564).

Almost surely, 2^51893061 is an apocalyptic number.

51893061 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51893061 is a deficient number, since it is larger than the sum of its proper divisors (28572987).

51893061 is a wasteful number, since it uses less digits than its factorization.

51893061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 51893061 is about 7203.6838492538. The cubic root of 51893061 is about 372.9950740508.

The spelling of 51893061 in words is "fifty-one million, eight hundred ninety-three thousand, sixty-one".