72526278 has 32 divisors (see below), whose sum is σ = 160030080. Its totient is φ = 21728960.

The previous prime is 72526277. The next prime is 72526297. The reversal of 72526278 is 87262527.

It is a super-2 number, since 2×72526278² = 10520122001066568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72526277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300 + ... + 12047.

It is an arithmetic number, because the mean of its divisors is an integer number (5000940).

Almost surely, 2^72526278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72526278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80015040).

72526278 is an abundant number, since it is smaller than the sum of its proper divisors (87503802).

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

72526278 is a wasteful number, since it uses less digits than its factorization.

72526278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12452.

The product of its digits is 94080, while the sum is 39.

The square root of 72526278 is about 8516.2361404555. The cubic root of 72526278 is about 417.0279182408.

It can be divided in two parts, 7252 and 6278, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 72526278 in words is "seventy-two million, five hundred twenty-six thousand, two hundred seventy-eight".