54722290 has 64 divisors (see below), whose sum is σ = 120476160. Its totient is φ = 17487360.

The previous prime is 54722287. The next prime is 54722293. The reversal of 54722290 is 9222745.

It is an interprime number because it is at equal distance from previous prime (54722287) and next prime (54722293).

It is not an unprimeable number, because it can be changed into a prime (54722293) 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, 65596 + ... + 66424.

It is an arithmetic number, because the mean of its divisors is an integer number (1882440).

Almost surely, 2^54722290 is an apocalyptic number.

54722290 is an abundant number, since it is smaller than the sum of its proper divisors (65753870).

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

54722290 is a wasteful number, since it uses less digits than its factorization.

54722290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 54722290 is about 7397.4515882160. The cubic root of 54722290 is about 379.6540942740.

The spelling of 54722290 in words is "fifty-four million, seven hundred twenty-two thousand, two hundred ninety".