61469520 has 120 divisors (see below), whose sum is σ = 221709024. Its totient is φ = 14047488.

The previous prime is 61469519. The next prime is 61469539. The reversal of 61469520 is 2596416.

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9147 + ... + 14373.

Almost surely, 2^61469520 is an apocalyptic number.

61469520 is a gapful number since it is divisible by the number (60) 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 61469520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110854512).

61469520 is an abundant number, since it is smaller than the sum of its proper divisors (160239504).

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

61469520 is a wasteful number, since it uses less digits than its factorization.

61469520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257 (or 5244 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 61469520 is about 7840.2499960142. The cubic root of 61469520 is about 394.6571184586.

The spelling of 61469520 in words is "sixty-one million, four hundred sixty-nine thousand, five hundred twenty".