72551654 has 12 divisors (see below), whose sum is σ = 126595404. Its totient is φ = 31093524.

The previous prime is 72551653. The next prime is 72551657. The reversal of 72551654 is 45615527.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72551653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370064 + ... + 370259.

It is an arithmetic number, because the mean of its divisors is an integer number (10549617).

Almost surely, 2^72551654 is an apocalyptic number.

72551654 is a deficient number, since it is larger than the sum of its proper divisors (54043750).

72551654 is a wasteful number, since it uses less digits than its factorization.

72551654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740339 (or 740332 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 72551654 is about 8517.7258702074. The cubic root of 72551654 is about 417.0765501149.

The spelling of 72551654 in words is "seventy-two million, five hundred fifty-one thousand, six hundred fifty-four".