72763551 has 24 divisors (see below), whose sum is σ = 120766464. Its totient is φ = 41354640.

The previous prime is 72763547. The next prime is 72763583. The reversal of 72763551 is 15536727.

It is not a de Polignac number, because 72763551 - 2² = 72763547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72763501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9010 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (5031936).

Almost surely, 2^72763551 is an apocalyptic number.

72763551 is a deficient number, since it is larger than the sum of its proper divisors (48002913).

72763551 is a wasteful number, since it uses less digits than its factorization.

72763551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251 (or 6248 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 72763551 is about 8530.1553913162. The cubic root of 72763551 is about 417.4821984354.

The spelling of 72763551 in words is "seventy-two million, seven hundred sixty-three thousand, five hundred fifty-one".