75215020 has 24 divisors (see below), whose sum is σ = 158309424. Its totient is φ = 30017856.

The previous prime is 75215017. The next prime is 75215059. The reversal of 75215020 is 2051257.

It is a junction number, because it is equal to n+sod(n) for n = 75214982 and 75215000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5314 + ... + 13366.

It is an arithmetic number, because the mean of its divisors is an integer number (6596226).

Almost surely, 2^75215020 is an apocalyptic number.

It is an amenable number.

75215020 is an abundant number, since it is smaller than the sum of its proper divisors (83094404).

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

75215020 is a wasteful number, since it uses less digits than its factorization.

75215020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8529 (or 8527 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 75215020 is about 8672.6593384036. The cubic root of 75215020 is about 422.1189589985.

Adding to 75215020 its reverse (2051257), we get a palindrome (77266277).

The spelling of 75215020 in words is "seventy-five million, two hundred fifteen thousand, twenty".