75524472 has 48 divisors (see below), whose sum is σ = 216581040. Its totient is φ = 23693568.

The previous prime is 75524461. The next prime is 75524473. The reversal of 75524472 is 27442557.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75524473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29628 + ... + 32075.

It is an arithmetic number, because the mean of its divisors is an integer number (4512105).

Almost surely, 2^75524472 is an apocalyptic number.

75524472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

75524472 is an abundant number, since it is smaller than the sum of its proper divisors (141056568).

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

75524472 is a wasteful number, since it uses less digits than its factorization.

75524472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61732 (or 61725 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 75524472 is about 8690.4816897569. The cubic root of 75524472 is about 422.6970652649.

75524472 divided by its sum of digits (36) gives a palindrome (2097902).

The spelling of 75524472 in words is "seventy-five million, five hundred twenty-four thousand, four hundred seventy-two".