65061556 has 48 divisors (see below), whose sum is σ = 134041600. Its totient is φ = 27057888.

The previous prime is 65061553. The next prime is 65061559. The reversal of 65061556 is 65516056.

It is an interprime number because it is at equal distance from previous prime (65061553) and next prime (65061559).

It is a super-2 number, since 2×65061556² = 8466012138282272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65061553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147985 + ... + 148423.

Almost surely, 2^65061556 is an apocalyptic number.

It is an amenable number.

65061556 is an abundant number, since it is smaller than the sum of its proper divisors (68980044).

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

65061556 is a wasteful number, since it uses less digits than its factorization.

65061556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 65061556 is about 8066.0743859699. The cubic root of 65061556 is about 402.1994587857.

The spelling of 65061556 in words is "sixty-five million, sixty-one thousand, five hundred fifty-six".