202551442 has 4 divisors (see below), whose sum is σ = 303827166. Its totient is φ = 101275720.

The previous prime is 202551407. The next prime is 202551463. The reversal of 202551442 is 244155202.

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

It can be written as a sum of positive squares in only one way, i.e., 185749641 + 16801801 = 13629^2 + 4099^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50637859 + ... + 50637862.

Almost surely, 2^202551442 is an apocalyptic number.

202551442 is a deficient number, since it is larger than the sum of its proper divisors (101275724).

202551442 is a wasteful number, since it uses less digits than its factorization.

202551442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101275723.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 202551442 is about 14232.0568436189. The cubic root of 202551442 is about 587.2798675507.

The spelling of 202551442 in words is "two hundred two million, five hundred fifty-one thousand, four hundred forty-two".