61750528 has 72 divisors (see below), whose sum is σ = 149228352. Its totient is φ = 24895488.

The previous prime is 61750519. The next prime is 61750529. The reversal of 61750528 is 82505716.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 61750493 and 61750502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61750529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29451 + ... + 31477.

It is an arithmetic number, because the mean of its divisors is an integer number (2072616).

Almost surely, 2^61750528 is an apocalyptic number.

61750528 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61750528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74614176).

61750528 is an abundant number, since it is smaller than the sum of its proper divisors (87477824).

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

61750528 is a wasteful number, since it uses less digits than its factorization.

61750528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 61750528 is about 7858.1504185145. The cubic root of 61750528 is about 395.2575962213.

It can be divided in two parts, 617505 and 28, that multiplied together give a triangular number (17290140 = T₅₈₈₀).

The spelling of 61750528 in words is "sixty-one million, seven hundred fifty thousand, five hundred twenty-eight".