51473190 has 32 divisors (see below), whose sum is σ = 123736320. Its totient is φ = 13703904.

The previous prime is 51473183. The next prime is 51473221. The reversal of 51473190 is 9137415.

It is a super-2 number, since 2×51473190² = 5298978577552200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26637 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (3866760).

Almost surely, 2^51473190 is an apocalyptic number.

51473190 is an abundant number, since it is smaller than the sum of its proper divisors (72263130).

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

51473190 is a wasteful number, since it uses less digits than its factorization.

51473190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 51473190 is about 7174.4818628247. The cubic root of 51473190 is about 371.9863707575.

The spelling of 51473190 in words is "fifty-one million, four hundred seventy-three thousand, one hundred ninety".