51153066 has 64 divisors (see below), whose sum is σ = 117210240. Its totient is φ = 16531200.

The previous prime is 51153043. The next prime is 51153077. The reversal of 51153066 is 66035115.

It is a happy number.

It is a super-2 number, since 2×51153066² = 5233272322400712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452626 + ... + 452738.

It is an arithmetic number, because the mean of its divisors is an integer number (1831410).

Almost surely, 2^51153066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51153066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58605120).

51153066 is an abundant number, since it is smaller than the sum of its proper divisors (66057174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51153066 is a wasteful number, since it uses less digits than its factorization.

51153066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51153066 is about 7152.1371631143. The cubic root of 51153066 is about 371.2136093297.

The spelling of 51153066 in words is "fifty-one million, one hundred fifty-three thousand, sixty-six".