225072078 has 64 divisors (see below), whose sum is σ = 594252288. Its totient is φ = 55019520.

The previous prime is 225072047. The next prime is 225072131. The reversal of 225072078 is 870270522.

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

It is a Curzon number.

It is a congruent 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, 6475 + ... + 22182.

It is an arithmetic number, because the mean of its divisors is an integer number (9285192).

Almost surely, 2^225072078 is an apocalyptic number.

225072078 is an abundant number, since it is smaller than the sum of its proper divisors (369180210).

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

225072078 is a wasteful number, since it uses less digits than its factorization.

225072078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28697.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 225072078 is about 15002.4024076146. The cubic root of 225072078 is about 608.2851397279.

The spelling of 225072078 in words is "two hundred twenty-five million, seventy-two thousand, seventy-eight".