61047500 has 30 divisors (see below), whose sum is σ = 133504140. Its totient is φ = 24418000.

The previous prime is 61047473. The next prime is 61047533. The reversal of 61047500 is 574016.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9710 + ... + 14709.

It is an arithmetic number, because the mean of its divisors is an integer number (4450138).

Almost surely, 2^61047500 is an apocalyptic number.

It is an amenable number.

61047500 is an abundant number, since it is smaller than the sum of its proper divisors (72456640).

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

61047500 is a wasteful number, since it uses less digits than its factorization.

61047500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24443 (or 24426 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 61047500 is about 7813.2899600616. The cubic root of 61047500 is about 393.7518686398.

The spelling of 61047500 in words is "sixty-one million, forty-seven thousand, five hundred".