72253741 has 16 divisors (see below), whose sum is σ = 87220224. Its totient is φ = 58514544.

The previous prime is 72253739. The next prime is 72253781. The reversal of 72253741 is 14735227.

It is a cyclic number.

It is not a de Polignac number, because 72253741 - 2¹ = 72253739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72253781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10660 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (5451264).

Almost surely, 2^72253741 is an apocalyptic number.

It is an amenable number.

72253741 is a deficient number, since it is larger than the sum of its proper divisors (14966483).

72253741 is a wasteful number, since it uses less digits than its factorization.

72253741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520.

The product of its digits is 11760, while the sum is 31.

The square root of 72253741 is about 8500.2200559750. The cubic root of 72253741 is about 416.5048976998.

Adding to 72253741 its reverse (14735227), we get a palindrome (86988968).

The spelling of 72253741 in words is "seventy-two million, two hundred fifty-three thousand, seven hundred forty-one".