61745952 has 24 divisors (see below), whose sum is σ = 162083376. Its totient is φ = 20581952.

The previous prime is 61745951. The next prime is 61745987. The reversal of 61745952 is 25954716.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 61745952.

It is not an unprimeable number, because it can be changed into a prime (61745951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321498 + ... + 321689.

It is an arithmetic number, because the mean of its divisors is an integer number (6753474).

Almost surely, 2^61745952 is an apocalyptic number.

It is an amenable number.

61745952 is an abundant number, since it is smaller than the sum of its proper divisors (100337424).

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

61745952 is a wasteful number, since it uses less digits than its factorization.

61745952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643200 (or 643192 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 61745952 is about 7857.8592504575. The cubic root of 61745952 is about 395.2478325075.

The spelling of 61745952 in words is "sixty-one million, seven hundred forty-five thousand, nine hundred fifty-two".