72550425 has 24 divisors (see below), whose sum is σ = 120577600. Its totient is φ = 38491200.

The previous prime is 72550403. The next prime is 72550433. The reversal of 72550425 is 52405527.

It is not a de Polignac number, because 72550425 - 2¹³ = 72542233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72550392 and 72550401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12495 + ... + 17355.

Almost surely, 2^72550425 is an apocalyptic number.

72550425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72550425 is a deficient number, since it is larger than the sum of its proper divisors (48027175).

72550425 is a wasteful number, since it uses less digits than its factorization.

72550425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073 (or 5068 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 72550425 is about 8517.6537262324. The cubic root of 72550425 is about 417.0741950573.

The spelling of 72550425 in words is "seventy-two million, five hundred fifty thousand, four hundred twenty-five".