61237501 has 4 divisors (see below), whose sum is σ = 65948092. Its totient is φ = 56526912.

The previous prime is 61237481. The next prime is 61237507. The reversal of 61237501 is 10573216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18020025 + 43217476 = 4245^2 + 6574^2 .

It is not a de Polignac number, because 61237501 - 2⁵ = 61237469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61237507) 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, 2355276 + ... + 2355301.

It is an arithmetic number, because the mean of its divisors is an integer number (16487023).

Almost surely, 2^61237501 is an apocalyptic number.

It is an amenable number.

61237501 is a deficient number, since it is larger than the sum of its proper divisors (4710591).

61237501 is a wasteful number, since it uses less digits than its factorization.

61237501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710590.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 61237501 is about 7825.4393486884. The cubic root of 61237501 is about 394.1599430507.

The spelling of 61237501 in words is "sixty-one million, two hundred thirty-seven thousand, five hundred one".