65061504 has 48 divisors (see below), whose sum is σ = 187224570. Its totient is φ = 21686784.

The previous prime is 65061497. The next prime is 65061509. The reversal of 65061504 is 40516056.

It is a happy number.

65061504 is a `hidden beast` number, since 6 + 506 + 150 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64641600 + 419904 = 8040^2 + 648^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (65061509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27087 + ... + 29390.

Almost surely, 2^65061504 is an apocalyptic number.

65061504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65061504 is an abundant number, since it is smaller than the sum of its proper divisors (122163066).

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

65061504 is a wasteful number, since it uses less digits than its factorization.

65061504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56497 (or 56482 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 65061504 is about 8066.0711625921. The cubic root of 65061504 is about 402.1993516339.

The spelling of 65061504 in words is "sixty-five million, sixty-one thousand, five hundred four".